Home / 154,489.29-213,177.60-86,496.81

Finding the Fourth Proportional to 154,489.29, 213,177.60 and 86,496.81

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Solution

The fourth proportional to 154,489.29, 213,177.60 and 86,496.81 is: 119,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,489.29 : 213,177.60 = 86,496.81 : x
  2. Step 2: Convert to fraction form
    154,489.29/213,177.60 = 86,496.81/x
  3. Step 3: Cross multiply
    154,489.29x = 213,177.60 × 86,496.81
  4. Step 4: Simplify right side
    154,489.29x = 18,439,182,363.46
  5. Step 5: Solve for x
    x = 18,439,182,363.46/154,489.29
  6. Step 6: Final answer
    x = 119,355.73

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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.