Home / 121,884.28-182,851.02-72,000.16

Finding the Fourth Proportional to 121,884.28, 182,851.02 and 72,000.16

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Solution

The fourth proportional to 121,884.28, 182,851.02 and 72,000.16 is: 108,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,884.28 : 182,851.02 = 72,000.16 : x
  2. Step 2: Convert to fraction form
    121,884.28/182,851.02 = 72,000.16/x
  3. Step 3: Cross multiply
    121,884.28x = 182,851.02 × 72,000.16
  4. Step 4: Simplify right side
    121,884.28x = 13,165,302,696.16
  5. Step 5: Solve for x
    x = 13,165,302,696.16/121,884.28
  6. Step 6: Final answer
    x = 108,014.77

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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.