Home / 153,078.90-229,539.24-68,766.98

Finding the Fourth Proportional to 153,078.90, 229,539.24 and 68,766.98

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Solution

The fourth proportional to 153,078.90, 229,539.24 and 68,766.98 is: 103,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,078.90 : 229,539.24 = 68,766.98 : x
  2. Step 2: Convert to fraction form
    153,078.90/229,539.24 = 68,766.98/x
  3. Step 3: Cross multiply
    153,078.90x = 229,539.24 × 68,766.98
  4. Step 4: Simplify right side
    153,078.90x = 15,784,719,372.01
  5. Step 5: Solve for x
    x = 15,784,719,372.01/153,078.90
  6. Step 6: Final answer
    x = 103,114.93

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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.