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Finding the Fourth Proportional to 141,325.96, 195,027.42 and 77,663.68

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Solution

The fourth proportional to 141,325.96, 195,027.42 and 77,663.68 is: 107,174.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,325.96 : 195,027.42 = 77,663.68 : x
  2. Step 2: Convert to fraction form
    141,325.96/195,027.42 = 77,663.68/x
  3. Step 3: Cross multiply
    141,325.96x = 195,027.42 × 77,663.68
  4. Step 4: Simplify right side
    141,325.96x = 15,146,547,138.11
  5. Step 5: Solve for x
    x = 15,146,547,138.11/141,325.96
  6. Step 6: Final answer
    x = 107,174.56

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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.