Home / 156,715.90-235,111.65-51,529.30

Finding the Fourth Proportional to 156,715.90, 235,111.65 and 51,529.30

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Solution

The fourth proportional to 156,715.90, 235,111.65 and 51,529.30 is: 77,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,715.90 : 235,111.65 = 51,529.30 : x
  2. Step 2: Convert to fraction form
    156,715.90/235,111.65 = 51,529.30/x
  3. Step 3: Cross multiply
    156,715.90x = 235,111.65 × 51,529.30
  4. Step 4: Simplify right side
    156,715.90x = 12,115,138,746.35
  5. Step 5: Solve for x
    x = 12,115,138,746.35/156,715.90
  6. Step 6: Final answer
    x = 77,306.38

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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.