Home / 152,987.18-229,401.59-68,674.74

Finding the Fourth Proportional to 152,987.18, 229,401.59 and 68,674.74

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Solution

The fourth proportional to 152,987.18, 229,401.59 and 68,674.74 is: 102,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,987.18 : 229,401.59 = 68,674.74 : x
  2. Step 2: Convert to fraction form
    152,987.18/229,401.59 = 68,674.74/x
  3. Step 3: Cross multiply
    152,987.18x = 229,401.59 × 68,674.74
  4. Step 4: Simplify right side
    152,987.18x = 15,754,094,205.46
  5. Step 5: Solve for x
    x = 15,754,094,205.46/152,987.18
  6. Step 6: Final answer
    x = 102,976.57

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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.