Home / 121,689.02-182,089.47-71,793.02

Finding the Fourth Proportional to 121,689.02, 182,089.47 and 71,793.02

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Solution

The fourth proportional to 121,689.02, 182,089.47 and 71,793.02 is: 107,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,689.02 : 182,089.47 = 71,793.02 : x
  2. Step 2: Convert to fraction form
    121,689.02/182,089.47 = 71,793.02/x
  3. Step 3: Cross multiply
    121,689.02x = 182,089.47 × 71,793.02
  4. Step 4: Simplify right side
    121,689.02x = 13,072,752,961.50
  5. Step 5: Solve for x
    x = 13,072,752,961.50/121,689.02
  6. Step 6: Final answer
    x = 107,427.55

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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.