Home / 141,532.38-195,317.66-77,870.30

Finding the Fourth Proportional to 141,532.38, 195,317.66 and 77,870.30

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Solution

The fourth proportional to 141,532.38, 195,317.66 and 77,870.30 is: 107,462.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,532.38 : 195,317.66 = 77,870.30 : x
  2. Step 2: Convert to fraction form
    141,532.38/195,317.66 = 77,870.30/x
  3. Step 3: Cross multiply
    141,532.38x = 195,317.66 × 77,870.30
  4. Step 4: Simplify right side
    141,532.38x = 15,209,443,997.59
  5. Step 5: Solve for x
    x = 15,209,443,997.59/141,532.38
  6. Step 6: Final answer
    x = 107,462.65

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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.