Home / 156,980.08-235,470.66-38,654.20

Finding the Fourth Proportional to 156,980.08, 235,470.66 and 38,654.20

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Solution

The fourth proportional to 156,980.08, 235,470.66 and 38,654.20 is: 57,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.08 : 235,470.66 = 38,654.20 : x
  2. Step 2: Convert to fraction form
    156,980.08/235,470.66 = 38,654.20/x
  3. Step 3: Cross multiply
    156,980.08x = 235,470.66 × 38,654.20
  4. Step 4: Simplify right side
    156,980.08x = 9,101,929,985.77
  5. Step 5: Solve for x
    x = 9,101,929,985.77/156,980.08
  6. Step 6: Final answer
    x = 57,981.43

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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.