Home / 153,117.20-229,675.80-74,385.20

Finding the Fourth Proportional to 153,117.20, 229,675.80 and 74,385.20

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Solution

The fourth proportional to 153,117.20, 229,675.80 and 74,385.20 is: 111,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,117.20 : 229,675.80 = 74,385.20 : x
  2. Step 2: Convert to fraction form
    153,117.20/229,675.80 = 74,385.20/x
  3. Step 3: Cross multiply
    153,117.20x = 229,675.80 × 74,385.20
  4. Step 4: Simplify right side
    153,117.20x = 17,084,480,318.16
  5. Step 5: Solve for x
    x = 17,084,480,318.16/153,117.20
  6. Step 6: Final answer
    x = 111,577.80

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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.