Home / 154,658.28-231,987.18-42,339.45

Finding the Fourth Proportional to 154,658.28, 231,987.18 and 42,339.45

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Solution

The fourth proportional to 154,658.28, 231,987.18 and 42,339.45 is: 63,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,658.28 : 231,987.18 = 42,339.45 : x
  2. Step 2: Convert to fraction form
    154,658.28/231,987.18 = 42,339.45/x
  3. Step 3: Cross multiply
    154,658.28x = 231,987.18 × 42,339.45
  4. Step 4: Simplify right side
    154,658.28x = 9,822,209,608.25
  5. Step 5: Solve for x
    x = 9,822,209,608.25/154,658.28
  6. Step 6: Final answer
    x = 63,509.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.