Home / 154,306.24-213,011.52-90,648.16

Finding the Fourth Proportional to 154,306.24, 213,011.52 and 90,648.16

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Solution

The fourth proportional to 154,306.24, 213,011.52 and 90,648.16 is: 125,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,306.24 : 213,011.52 = 90,648.16 : x
  2. Step 2: Convert to fraction form
    154,306.24/213,011.52 = 90,648.16/x
  3. Step 3: Cross multiply
    154,306.24x = 213,011.52 × 90,648.16
  4. Step 4: Simplify right side
    154,306.24x = 19,309,102,346.80
  5. Step 5: Solve for x
    x = 19,309,102,346.80/154,306.24
  6. Step 6: Final answer
    x = 125,134.94

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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.