Home / 141,432.76-195,182.23-77,775.40

Finding the Fourth Proportional to 141,432.76, 195,182.23 and 77,775.40

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Solution

The fourth proportional to 141,432.76, 195,182.23 and 77,775.40 is: 107,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,432.76 : 195,182.23 = 77,775.40 : x
  2. Step 2: Convert to fraction form
    141,432.76/195,182.23 = 77,775.40/x
  3. Step 3: Cross multiply
    141,432.76x = 195,182.23 × 77,775.40
  4. Step 4: Simplify right side
    141,432.76x = 15,180,376,011.14
  5. Step 5: Solve for x
    x = 15,180,376,011.14/141,432.76
  6. Step 6: Final answer
    x = 107,332.81

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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.