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Finding the Fourth Proportional to 102,221.40, 153,332.10 and 89,099.40

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Solution

The fourth proportional to 102,221.40, 153,332.10 and 89,099.40 is: 133,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,221.40 : 153,332.10 = 89,099.40 : x
  2. Step 2: Convert to fraction form
    102,221.40/153,332.10 = 89,099.40/x
  3. Step 3: Cross multiply
    102,221.40x = 153,332.10 × 89,099.40
  4. Step 4: Simplify right side
    102,221.40x = 13,661,798,110.74
  5. Step 5: Solve for x
    x = 13,661,798,110.74/102,221.40
  6. Step 6: Final answer
    x = 133,649.10

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1.5x scale

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.