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Finding the Fourth Proportional to 156,572.69, 216,069.36 and 84,951.17

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Solution

The fourth proportional to 156,572.69, 216,069.36 and 84,951.17 is: 117,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,572.69 : 216,069.36 = 84,951.17 : x
  2. Step 2: Convert to fraction form
    156,572.69/216,069.36 = 84,951.17/x
  3. Step 3: Cross multiply
    156,572.69x = 216,069.36 × 84,951.17
  4. Step 4: Simplify right side
    156,572.69x = 18,355,343,852.80
  5. Step 5: Solve for x
    x = 18,355,343,852.80/156,572.69
  6. Step 6: Final answer
    x = 117,232.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.