Home / 154,581.38-213,320.33-86,597.12

Finding the Fourth Proportional to 154,581.38, 213,320.33 and 86,597.12

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Solution

The fourth proportional to 154,581.38, 213,320.33 and 86,597.12 is: 119,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,581.38 : 213,320.33 = 86,597.12 : x
  2. Step 2: Convert to fraction form
    154,581.38/213,320.33 = 86,597.12/x
  3. Step 3: Cross multiply
    154,581.38x = 213,320.33 × 86,597.12
  4. Step 4: Simplify right side
    154,581.38x = 18,472,925,927.69
  5. Step 5: Solve for x
    x = 18,472,925,927.69/154,581.38
  6. Step 6: Final answer
    x = 119,502.92

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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.