Home / 154,654.13-213,422.70-87,586.13

Finding the Fourth Proportional to 154,654.13, 213,422.70 and 87,586.13

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Solution

The fourth proportional to 154,654.13, 213,422.70 and 87,586.13 is: 120,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,654.13 : 213,422.70 = 87,586.13 : x
  2. Step 2: Convert to fraction form
    154,654.13/213,422.70 = 87,586.13/x
  3. Step 3: Cross multiply
    154,654.13x = 213,422.70 × 87,586.13
  4. Step 4: Simplify right side
    154,654.13x = 18,692,867,280.04
  5. Step 5: Solve for x
    x = 18,692,867,280.04/154,654.13
  6. Step 6: Final answer
    x = 120,868.86

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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.