Home / 152,990.48-229,406.51-68,678.04

Finding the Fourth Proportional to 152,990.48, 229,406.51 and 68,678.04

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Solution

The fourth proportional to 152,990.48, 229,406.51 and 68,678.04 is: 102,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,990.48 : 229,406.51 = 68,678.04 : x
  2. Step 2: Convert to fraction form
    152,990.48/229,406.51 = 68,678.04/x
  3. Step 3: Cross multiply
    152,990.48x = 229,406.51 × 68,678.04
  4. Step 4: Simplify right side
    152,990.48x = 15,755,189,126.65
  5. Step 5: Solve for x
    x = 15,755,189,126.65/152,990.48
  6. Step 6: Final answer
    x = 102,981.50

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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.