Home / 153,009.60-229,356.45-68,810.10

Finding the Fourth Proportional to 153,009.60, 229,356.45 and 68,810.10

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Solution

The fourth proportional to 153,009.60, 229,356.45 and 68,810.10 is: 103,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,009.60 : 229,356.45 = 68,810.10 : x
  2. Step 2: Convert to fraction form
    153,009.60/229,356.45 = 68,810.10/x
  3. Step 3: Cross multiply
    153,009.60x = 229,356.45 × 68,810.10
  4. Step 4: Simplify right side
    153,009.60x = 15,782,040,260.15
  5. Step 5: Solve for x
    x = 15,782,040,260.15/153,009.60
  6. Step 6: Final answer
    x = 103,144.12

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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.