Home / 145,850.20-218,192.10-126,345.40

Finding the Fourth Proportional to 145,850.20, 218,192.10 and 126,345.40

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Solution

The fourth proportional to 145,850.20, 218,192.10 and 126,345.40 is: 189,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.20 : 218,192.10 = 126,345.40 : x
  2. Step 2: Convert to fraction form
    145,850.20/218,192.10 = 126,345.40/x
  3. Step 3: Cross multiply
    145,850.20x = 218,192.10 × 126,345.40
  4. Step 4: Simplify right side
    145,850.20x = 27,567,568,151.34
  5. Step 5: Solve for x
    x = 27,567,568,151.34/145,850.20
  6. Step 6: Final answer
    x = 189,012.89

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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.