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Finding the Fourth Proportional to 98,011.47, 135,332.01 and 75,314.70

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Solution

The fourth proportional to 98,011.47, 135,332.01 and 75,314.70 is: 103,992.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,011.47 : 135,332.01 = 75,314.70 : x
  2. Step 2: Convert to fraction form
    98,011.47/135,332.01 = 75,314.70/x
  3. Step 3: Cross multiply
    98,011.47x = 135,332.01 × 75,314.70
  4. Step 4: Simplify right side
    98,011.47x = 10,192,489,733.55
  5. Step 5: Solve for x
    x = 10,192,489,733.55/98,011.47
  6. Step 6: Final answer
    x = 103,992.83

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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.