Home / 95,435.40-142,965.86-77,685.16

Finding the Fourth Proportional to 95,435.40, 142,965.86 and 77,685.16

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Solution

The fourth proportional to 95,435.40, 142,965.86 and 77,685.16 is: 116,375.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,435.40 : 142,965.86 = 77,685.16 : x
  2. Step 2: Convert to fraction form
    95,435.40/142,965.86 = 77,685.16/x
  3. Step 3: Cross multiply
    95,435.40x = 142,965.86 × 77,685.16
  4. Step 4: Simplify right side
    95,435.40x = 11,106,325,708.64
  5. Step 5: Solve for x
    x = 11,106,325,708.64/95,435.40
  6. Step 6: Final answer
    x = 116,375.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.