Home / 148,764.80-223,186.08-86,381.60

Finding the Fourth Proportional to 148,764.80, 223,186.08 and 86,381.60

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Solution

The fourth proportional to 148,764.80, 223,186.08 and 86,381.60 is: 129,594.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,764.80 : 223,186.08 = 86,381.60 : x
  2. Step 2: Convert to fraction form
    148,764.80/223,186.08 = 86,381.60/x
  3. Step 3: Cross multiply
    148,764.80x = 223,186.08 × 86,381.60
  4. Step 4: Simplify right side
    148,764.80x = 19,279,170,688.13
  5. Step 5: Solve for x
    x = 19,279,170,688.13/148,764.80
  6. Step 6: Final answer
    x = 129,594.98

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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.