Home / 154,507.77-213,127.61-90,793.17

Finding the Fourth Proportional to 154,507.77, 213,127.61 and 90,793.17

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Solution

The fourth proportional to 154,507.77, 213,127.61 and 90,793.17 is: 125,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,507.77 : 213,127.61 = 90,793.17 : x
  2. Step 2: Convert to fraction form
    154,507.77/213,127.61 = 90,793.17/x
  3. Step 3: Cross multiply
    154,507.77x = 213,127.61 × 90,793.17
  4. Step 4: Simplify right side
    154,507.77x = 19,350,530,872.46
  5. Step 5: Solve for x
    x = 19,350,530,872.46/154,507.77
  6. Step 6: Final answer
    x = 125,239.86

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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.