Home / 144,279.90-216,387.05-69,353.28

Finding the Fourth Proportional to 144,279.90, 216,387.05 and 69,353.28

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Solution

The fourth proportional to 144,279.90, 216,387.05 and 69,353.28 is: 104,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,279.90 : 216,387.05 = 69,353.28 : x
  2. Step 2: Convert to fraction form
    144,279.90/216,387.05 = 69,353.28/x
  3. Step 3: Cross multiply
    144,279.90x = 216,387.05 × 69,353.28
  4. Step 4: Simplify right side
    144,279.90x = 15,007,151,320.26
  5. Step 5: Solve for x
    x = 15,007,151,320.26/144,279.90
  6. Step 6: Final answer
    x = 104,014.15

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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.