Home / 153,097.28-229,567.20-68,785.18

Finding the Fourth Proportional to 153,097.28, 229,567.20 and 68,785.18

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Solution

The fourth proportional to 153,097.28, 229,567.20 and 68,785.18 is: 103,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,097.28 : 229,567.20 = 68,785.18 : x
  2. Step 2: Convert to fraction form
    153,097.28/229,567.20 = 68,785.18/x
  3. Step 3: Cross multiply
    153,097.28x = 229,567.20 × 68,785.18
  4. Step 4: Simplify right side
    153,097.28x = 15,790,821,174.10
  5. Step 5: Solve for x
    x = 15,790,821,174.10/153,097.28
  6. Step 6: Final answer
    x = 103,142.40

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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.