Home / 136,335.56-188,130.60-100,545.30

Finding the Fourth Proportional to 136,335.56, 188,130.60 and 100,545.30

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Solution

The fourth proportional to 136,335.56, 188,130.60 and 100,545.30 is: 138,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,335.56 : 188,130.60 = 100,545.30 : x
  2. Step 2: Convert to fraction form
    136,335.56/188,130.60 = 100,545.30/x
  3. Step 3: Cross multiply
    136,335.56x = 188,130.60 × 100,545.30
  4. Step 4: Simplify right side
    136,335.56x = 18,915,647,616.18
  5. Step 5: Solve for x
    x = 18,915,647,616.18/136,335.56
  6. Step 6: Final answer
    x = 138,743.32

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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.