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Finding the Fourth Proportional to 97,019.81, 133,882.88 and 68,350.97

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Solution

The fourth proportional to 97,019.81, 133,882.88 and 68,350.97 is: 94,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,019.81 : 133,882.88 = 68,350.97 : x
  2. Step 2: Convert to fraction form
    97,019.81/133,882.88 = 68,350.97/x
  3. Step 3: Cross multiply
    97,019.81x = 133,882.88 × 68,350.97
  4. Step 4: Simplify right side
    97,019.81x = 9,151,024,707.35
  5. Step 5: Solve for x
    x = 9,151,024,707.35/97,019.81
  6. Step 6: Final answer
    x = 94,321.20

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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.