Home / 156,605.23-234,831.30-109,243.02

Finding the Fourth Proportional to 156,605.23, 234,831.30 and 109,243.02

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Solution

The fourth proportional to 156,605.23, 234,831.30 and 109,243.02 is: 163,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,605.23 : 234,831.30 = 109,243.02 : x
  2. Step 2: Convert to fraction form
    156,605.23/234,831.30 = 109,243.02/x
  3. Step 3: Cross multiply
    156,605.23x = 234,831.30 × 109,243.02
  4. Step 4: Simplify right side
    156,605.23x = 25,653,680,402.53
  5. Step 5: Solve for x
    x = 25,653,680,402.53/156,605.23
  6. Step 6: Final answer
    x = 163,811.13

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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.