Home / 153,116.46-229,650.39-78,291.90

Finding the Fourth Proportional to 153,116.46, 229,650.39 and 78,291.90

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Solution

The fourth proportional to 153,116.46, 229,650.39 and 78,291.90 is: 117,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,116.46 : 229,650.39 = 78,291.90 : x
  2. Step 2: Convert to fraction form
    153,116.46/229,650.39 = 78,291.90/x
  3. Step 3: Cross multiply
    153,116.46x = 229,650.39 × 78,291.90
  4. Step 4: Simplify right side
    153,116.46x = 17,979,765,368.84
  5. Step 5: Solve for x
    x = 17,979,765,368.84/153,116.46
  6. Step 6: Final answer
    x = 117,425.42

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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.