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Finding the Fourth Proportional to 97,377.78, 134,345.30 and 71,945.40

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Solution

The fourth proportional to 97,377.78, 134,345.30 and 71,945.40 is: 99,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,377.78 : 134,345.30 = 71,945.40 : x
  2. Step 2: Convert to fraction form
    97,377.78/134,345.30 = 71,945.40/x
  3. Step 3: Cross multiply
    97,377.78x = 134,345.30 × 71,945.40
  4. Step 4: Simplify right side
    97,377.78x = 9,665,526,346.62
  5. Step 5: Solve for x
    x = 9,665,526,346.62/97,377.78
  6. Step 6: Final answer
    x = 99,258.03

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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.