Home / 141,532.88-195,318.40-77,870.86

Finding the Fourth Proportional to 141,532.88, 195,318.40 and 77,870.86

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Solution

The fourth proportional to 141,532.88, 195,318.40 and 77,870.86 is: 107,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,532.88 : 195,318.40 = 77,870.86 : x
  2. Step 2: Convert to fraction form
    141,532.88/195,318.40 = 77,870.86/x
  3. Step 3: Cross multiply
    141,532.88x = 195,318.40 × 77,870.86
  4. Step 4: Simplify right side
    141,532.88x = 15,209,611,781.82
  5. Step 5: Solve for x
    x = 15,209,611,781.82/141,532.88
  6. Step 6: Final answer
    x = 107,463.45

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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.