Home / 152,229.60-227,998.80-78,271.20

Finding the Fourth Proportional to 152,229.60, 227,998.80 and 78,271.20

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Solution

The fourth proportional to 152,229.60, 227,998.80 and 78,271.20 is: 117,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,229.60 : 227,998.80 = 78,271.20 : x
  2. Step 2: Convert to fraction form
    152,229.60/227,998.80 = 78,271.20/x
  3. Step 3: Cross multiply
    152,229.60x = 227,998.80 × 78,271.20
  4. Step 4: Simplify right side
    152,229.60x = 17,845,739,674.56
  5. Step 5: Solve for x
    x = 17,845,739,674.56/152,229.60
  6. Step 6: Final answer
    x = 117,229.10

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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.