Home / 156,859.10-235,095.92-72,505.14

Finding the Fourth Proportional to 156,859.10, 235,095.92 and 72,505.14

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Solution

The fourth proportional to 156,859.10, 235,095.92 and 72,505.14 is: 108,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,859.10 : 235,095.92 = 72,505.14 : x
  2. Step 2: Convert to fraction form
    156,859.10/235,095.92 = 72,505.14/x
  3. Step 3: Cross multiply
    156,859.10x = 235,095.92 × 72,505.14
  4. Step 4: Simplify right side
    156,859.10x = 17,045,662,943.20
  5. Step 5: Solve for x
    x = 17,045,662,943.20/156,859.10
  6. Step 6: Final answer
    x = 108,668.63

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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.