Home / 149,109.80-223,373.10-89,769.20

Finding the Fourth Proportional to 149,109.80, 223,373.10 and 89,769.20

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Solution

The fourth proportional to 149,109.80, 223,373.10 and 89,769.20 is: 134,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,109.80 : 223,373.10 = 89,769.20 : x
  2. Step 2: Convert to fraction form
    149,109.80/223,373.10 = 89,769.20/x
  3. Step 3: Cross multiply
    149,109.80x = 223,373.10 × 89,769.20
  4. Step 4: Simplify right side
    149,109.80x = 20,052,024,488.52
  5. Step 5: Solve for x
    x = 20,052,024,488.52/149,109.80
  6. Step 6: Final answer
    x = 134,478.25

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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.