Home / 119,743.80-179,615.70-90,000.60

Finding the Fourth Proportional to 119,743.80, 179,615.70 and 90,000.60

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Solution

The fourth proportional to 119,743.80, 179,615.70 and 90,000.60 is: 135,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,743.80 : 179,615.70 = 90,000.60 : x
  2. Step 2: Convert to fraction form
    119,743.80/179,615.70 = 90,000.60/x
  3. Step 3: Cross multiply
    119,743.80x = 179,615.70 × 90,000.60
  4. Step 4: Simplify right side
    119,743.80x = 16,165,520,769.42
  5. Step 5: Solve for x
    x = 16,165,520,769.42/119,743.80
  6. Step 6: Final answer
    x = 135,000.90

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1.5x scale

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.