Home / 103,723.28-155,449.56-47,543.12

Finding the Fourth Proportional to 103,723.28, 155,449.56 and 47,543.12

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Solution

The fourth proportional to 103,723.28, 155,449.56 and 47,543.12 is: 71,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,723.28 : 155,449.56 = 47,543.12 : x
  2. Step 2: Convert to fraction form
    103,723.28/155,449.56 = 47,543.12/x
  3. Step 3: Cross multiply
    103,723.28x = 155,449.56 × 47,543.12
  4. Step 4: Simplify right side
    103,723.28x = 7,390,557,085.03
  5. Step 5: Solve for x
    x = 7,390,557,085.03/103,723.28
  6. Step 6: Final answer
    x = 71,252.64

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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.