Home / 105,434.48-145,432.92-73,591.60

Finding the Fourth Proportional to 105,434.48, 145,432.92 and 73,591.60

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Solution

The fourth proportional to 105,434.48, 145,432.92 and 73,591.60 is: 101,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,434.48 : 145,432.92 = 73,591.60 : x
  2. Step 2: Convert to fraction form
    105,434.48/145,432.92 = 73,591.60/x
  3. Step 3: Cross multiply
    105,434.48x = 145,432.92 × 73,591.60
  4. Step 4: Simplify right side
    105,434.48x = 10,702,641,275.47
  5. Step 5: Solve for x
    x = 10,702,641,275.47/105,434.48
  6. Step 6: Final answer
    x = 101,509.88

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1.5x scale

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.