Home / 141,513.76-195,294.18-77,856.40

Finding the Fourth Proportional to 141,513.76, 195,294.18 and 77,856.40

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Solution

The fourth proportional to 141,513.76, 195,294.18 and 77,856.40 is: 107,444.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,513.76 : 195,294.18 = 77,856.40 : x
  2. Step 2: Convert to fraction form
    141,513.76/195,294.18 = 77,856.40/x
  3. Step 3: Cross multiply
    141,513.76x = 195,294.18 × 77,856.40
  4. Step 4: Simplify right side
    141,513.76x = 15,204,901,795.75
  5. Step 5: Solve for x
    x = 15,204,901,795.75/141,513.76
  6. Step 6: Final answer
    x = 107,444.69

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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.