Home / 156,712,123.20-235,068,184.80-139,990,612.80

Finding the Fourth Proportional to 156,712,123.20, 235,068,184.80 and 139,990,612.80

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Solution

The fourth proportional to 156,712,123.20, 235,068,184.80 and 139,990,612.80 is: 209,985,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712,123.20 : 235,068,184.80 = 139,990,612.80 : x
  2. Step 2: Convert to fraction form
    156,712,123.20/235,068,184.80 = 139,990,612.80/x
  3. Step 3: Cross multiply
    156,712,123.20x = 235,068,184.80 × 139,990,612.80
  4. Step 4: Simplify right side
    156,712,123.20x = 32,907,339,239,935,648
  5. Step 5: Solve for x
    x = 32,907,339,239,935,648/156,712,123.20
  6. Step 6: Final answer
    x = 209,985,919.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.