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Finding the Fourth Proportional to 104,455.46, 144,005.71 and 71,748.87

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Solution

The fourth proportional to 104,455.46, 144,005.71 and 71,748.87 is: 98,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,455.46 : 144,005.71 = 71,748.87 : x
  2. Step 2: Convert to fraction form
    104,455.46/144,005.71 = 71,748.87/x
  3. Step 3: Cross multiply
    104,455.46x = 144,005.71 × 71,748.87
  4. Step 4: Simplify right side
    104,455.46x = 10,332,246,966.05
  5. Step 5: Solve for x
    x = 10,332,246,966.05/104,455.46
  6. Step 6: Final answer
    x = 98,915.34

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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.