Home / 152,920.30-229,271.10-68,611.45

Finding the Fourth Proportional to 152,920.30, 229,271.10 and 68,611.45

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Solution

The fourth proportional to 152,920.30, 229,271.10 and 68,611.45 is: 102,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,920.30 : 229,271.10 = 68,611.45 : x
  2. Step 2: Convert to fraction form
    152,920.30/229,271.10 = 68,611.45/x
  3. Step 3: Cross multiply
    152,920.30x = 229,271.10 × 68,611.45
  4. Step 4: Simplify right side
    152,920.30x = 15,730,622,614.10
  5. Step 5: Solve for x
    x = 15,730,622,614.10/152,920.30
  6. Step 6: Final answer
    x = 102,868.11

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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.