Home / 154,530.52-213,227.76-90,010.38

Finding the Fourth Proportional to 154,530.52, 213,227.76 and 90,010.38

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Solution

The fourth proportional to 154,530.52, 213,227.76 and 90,010.38 is: 124,200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,530.52 : 213,227.76 = 90,010.38 : x
  2. Step 2: Convert to fraction form
    154,530.52/213,227.76 = 90,010.38/x
  3. Step 3: Cross multiply
    154,530.52x = 213,227.76 × 90,010.38
  4. Step 4: Simplify right side
    154,530.52x = 19,192,711,704.15
  5. Step 5: Solve for x
    x = 19,192,711,704.15/154,530.52
  6. Step 6: Final answer
    x = 124,200.14

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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.