Home / 301,132.08-451,700.04-90,769.20

Finding the Fourth Proportional to 301,132.08, 451,700.04 and 90,769.20

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Solution

The fourth proportional to 301,132.08, 451,700.04 and 90,769.20 is: 136,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,132.08 : 451,700.04 = 90,769.20 : x
  2. Step 2: Convert to fraction form
    301,132.08/451,700.04 = 90,769.20/x
  3. Step 3: Cross multiply
    301,132.08x = 451,700.04 × 90,769.20
  4. Step 4: Simplify right side
    301,132.08x = 41,000,451,270.77
  5. Step 5: Solve for x
    x = 41,000,451,270.77/301,132.08
  6. Step 6: Final answer
    x = 136,154.38

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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.