Home / 156,740.30-235,008.21-56,881.58

Finding the Fourth Proportional to 156,740.30, 235,008.21 and 56,881.58

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Solution

The fourth proportional to 156,740.30, 235,008.21 and 56,881.58 is: 85,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.30 : 235,008.21 = 56,881.58 : x
  2. Step 2: Convert to fraction form
    156,740.30/235,008.21 = 56,881.58/x
  3. Step 3: Cross multiply
    156,740.30x = 235,008.21 × 56,881.58
  4. Step 4: Simplify right side
    156,740.30x = 13,367,638,297.77
  5. Step 5: Solve for x
    x = 13,367,638,297.77/156,740.30
  6. Step 6: Final answer
    x = 85,285.27

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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.