Home / 102,528.40-141,559.15-66,317.62

Finding the Fourth Proportional to 102,528.40, 141,559.15 and 66,317.62

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Solution

The fourth proportional to 102,528.40, 141,559.15 and 66,317.62 is: 91,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,528.40 : 141,559.15 = 66,317.62 : x
  2. Step 2: Convert to fraction form
    102,528.40/141,559.15 = 66,317.62/x
  3. Step 3: Cross multiply
    102,528.40x = 141,559.15 × 66,317.62
  4. Step 4: Simplify right side
    102,528.40x = 9,387,865,231.74
  5. Step 5: Solve for x
    x = 9,387,865,231.74/102,528.40
  6. Step 6: Final answer
    x = 91,563.56

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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.