Home / 156,980.86-235,479.45-51,808.03

Finding the Fourth Proportional to 156,980.86, 235,479.45 and 51,808.03

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Solution

The fourth proportional to 156,980.86, 235,479.45 and 51,808.03 is: 77,714.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.86 : 235,479.45 = 51,808.03 : x
  2. Step 2: Convert to fraction form
    156,980.86/235,479.45 = 51,808.03/x
  3. Step 3: Cross multiply
    156,980.86x = 235,479.45 × 51,808.03
  4. Step 4: Simplify right side
    156,980.86x = 12,199,726,409.98
  5. Step 5: Solve for x
    x = 12,199,726,409.98/156,980.86
  6. Step 6: Final answer
    x = 77,714.74

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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.