Home / 97,121.28-134,018.08-71,641.52

Finding the Fourth Proportional to 97,121.28, 134,018.08 and 71,641.52

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Solution

The fourth proportional to 97,121.28, 134,018.08 and 71,641.52 is: 98,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,121.28 : 134,018.08 = 71,641.52 : x
  2. Step 2: Convert to fraction form
    97,121.28/134,018.08 = 71,641.52/x
  3. Step 3: Cross multiply
    97,121.28x = 134,018.08 × 71,641.52
  4. Step 4: Simplify right side
    97,121.28x = 9,601,258,958.68
  5. Step 5: Solve for x
    x = 9,601,258,958.68/97,121.28
  6. Step 6: Final answer
    x = 98,858.45

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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.