Home / 210,023.20-314,952.90-91,613.80

Finding the Fourth Proportional to 210,023.20, 314,952.90 and 91,613.80

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Solution

The fourth proportional to 210,023.20, 314,952.90 and 91,613.80 is: 137,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,023.20 : 314,952.90 = 91,613.80 : x
  2. Step 2: Convert to fraction form
    210,023.20/314,952.90 = 91,613.80/x
  3. Step 3: Cross multiply
    210,023.20x = 314,952.90 × 91,613.80
  4. Step 4: Simplify right side
    210,023.20x = 28,854,031,990.02
  5. Step 5: Solve for x
    x = 28,854,031,990.02/210,023.20
  6. Step 6: Final answer
    x = 137,384.97

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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.