Home / 156,569.15-234,838.15-72,328.11

Finding the Fourth Proportional to 156,569.15, 234,838.15 and 72,328.11

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Solution

The fourth proportional to 156,569.15, 234,838.15 and 72,328.11 is: 108,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,569.15 : 234,838.15 = 72,328.11 : x
  2. Step 2: Convert to fraction form
    156,569.15/234,838.15 = 72,328.11/x
  3. Step 3: Cross multiply
    156,569.15x = 234,838.15 × 72,328.11
  4. Step 4: Simplify right side
    156,569.15x = 16,985,399,545.40
  5. Step 5: Solve for x
    x = 16,985,399,545.40/156,569.15
  6. Step 6: Final answer
    x = 108,484.97

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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.