Home / 207,144.90-310,723.83-66,904.74

Finding the Fourth Proportional to 207,144.90, 310,723.83 and 66,904.74

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Solution

The fourth proportional to 207,144.90, 310,723.83 and 66,904.74 is: 100,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,144.90 : 310,723.83 = 66,904.74 : x
  2. Step 2: Convert to fraction form
    207,144.90/310,723.83 = 66,904.74/x
  3. Step 3: Cross multiply
    207,144.90x = 310,723.83 × 66,904.74
  4. Step 4: Simplify right side
    207,144.90x = 20,788,897,057.95
  5. Step 5: Solve for x
    x = 20,788,897,057.95/207,144.90
  6. Step 6: Final answer
    x = 100,359.20

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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.