Home / 154,455.40-231,679.68-42,133.60

Finding the Fourth Proportional to 154,455.40, 231,679.68 and 42,133.60

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Solution

The fourth proportional to 154,455.40, 231,679.68 and 42,133.60 is: 63,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,455.40 : 231,679.68 = 42,133.60 : x
  2. Step 2: Convert to fraction form
    154,455.40/231,679.68 = 42,133.60/x
  3. Step 3: Cross multiply
    154,455.40x = 231,679.68 × 42,133.60
  4. Step 4: Simplify right side
    154,455.40x = 9,761,498,965.25
  5. Step 5: Solve for x
    x = 9,761,498,965.25/154,455.40
  6. Step 6: Final answer
    x = 63,199.47

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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.