Home / 102,241.60-141,013.40-66,443.04

Finding the Fourth Proportional to 102,241.60, 141,013.40 and 66,443.04

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Solution

The fourth proportional to 102,241.60, 141,013.40 and 66,443.04 is: 91,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,241.60 : 141,013.40 = 66,443.04 : x
  2. Step 2: Convert to fraction form
    102,241.60/141,013.40 = 66,443.04/x
  3. Step 3: Cross multiply
    102,241.60x = 141,013.40 × 66,443.04
  4. Step 4: Simplify right side
    102,241.60x = 9,369,358,976.74
  5. Step 5: Solve for x
    x = 9,369,358,976.74/102,241.60
  6. Step 6: Final answer
    x = 91,639.40

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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.