Home / 103,725.28-155,452.56-47,545.12

Finding the Fourth Proportional to 103,725.28, 155,452.56 and 47,545.12

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Solution

The fourth proportional to 103,725.28, 155,452.56 and 47,545.12 is: 71,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,725.28 : 155,452.56 = 47,545.12 : x
  2. Step 2: Convert to fraction form
    103,725.28/155,452.56 = 47,545.12/x
  3. Step 3: Cross multiply
    103,725.28x = 155,452.56 × 47,545.12
  4. Step 4: Simplify right side
    103,725.28x = 7,391,010,619.51
  5. Step 5: Solve for x
    x = 7,391,010,619.51/103,725.28
  6. Step 6: Final answer
    x = 71,255.63

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1.5x scale

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.