Home / 153,011.70-229,517.55-68,739.30

Finding the Fourth Proportional to 153,011.70, 229,517.55 and 68,739.30

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Solution

The fourth proportional to 153,011.70, 229,517.55 and 68,739.30 is: 103,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,011.70 : 229,517.55 = 68,739.30 : x
  2. Step 2: Convert to fraction form
    153,011.70/229,517.55 = 68,739.30/x
  3. Step 3: Cross multiply
    153,011.70x = 229,517.55 × 68,739.30
  4. Step 4: Simplify right side
    153,011.70x = 15,776,875,724.72
  5. Step 5: Solve for x
    x = 15,776,875,724.72/153,011.70
  6. Step 6: Final answer
    x = 103,108.95

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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.