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Finding the Fourth Proportional to 112,073.76, 168,110.76 and 64,760.88

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Solution

The fourth proportional to 112,073.76, 168,110.76 and 64,760.88 is: 97,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,073.76 : 168,110.76 = 64,760.88 : x
  2. Step 2: Convert to fraction form
    112,073.76/168,110.76 = 64,760.88/x
  3. Step 3: Cross multiply
    112,073.76x = 168,110.76 × 64,760.88
  4. Step 4: Simplify right side
    112,073.76x = 10,887,000,755.07
  5. Step 5: Solve for x
    x = 10,887,000,755.07/112,073.76
  6. Step 6: Final answer
    x = 97,141.39

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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.