Home / 121,990.02-182,992.20-47,110.55

Finding the Fourth Proportional to 121,990.02, 182,992.20 and 47,110.55

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Solution

The fourth proportional to 121,990.02, 182,992.20 and 47,110.55 is: 70,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,990.02 : 182,992.20 = 47,110.55 : x
  2. Step 2: Convert to fraction form
    121,990.02/182,992.20 = 47,110.55/x
  3. Step 3: Cross multiply
    121,990.02x = 182,992.20 × 47,110.55
  4. Step 4: Simplify right side
    121,990.02x = 8,620,863,645.19
  5. Step 5: Solve for x
    x = 8,620,863,645.19/121,990.02
  6. Step 6: Final answer
    x = 70,668.60

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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.