Home / 102,743.28-141,745.68-64,480.50

Finding the Fourth Proportional to 102,743.28, 141,745.68 and 64,480.50

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Solution

The fourth proportional to 102,743.28, 141,745.68 and 64,480.50 is: 88,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,743.28 : 141,745.68 = 64,480.50 : x
  2. Step 2: Convert to fraction form
    102,743.28/141,745.68 = 64,480.50/x
  3. Step 3: Cross multiply
    102,743.28x = 141,745.68 × 64,480.50
  4. Step 4: Simplify right side
    102,743.28x = 9,139,832,319.24
  5. Step 5: Solve for x
    x = 9,139,832,319.24/102,743.28
  6. Step 6: Final answer
    x = 88,957.96

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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.