Home / 124,727.31-172,121.02-71,011.55

Finding the Fourth Proportional to 124,727.31, 172,121.02 and 71,011.55

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Solution

The fourth proportional to 124,727.31, 172,121.02 and 71,011.55 is: 97,994.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,727.31 : 172,121.02 = 71,011.55 : x
  2. Step 2: Convert to fraction form
    124,727.31/172,121.02 = 71,011.55/x
  3. Step 3: Cross multiply
    124,727.31x = 172,121.02 × 71,011.55
  4. Step 4: Simplify right side
    124,727.31x = 12,222,580,670.55
  5. Step 5: Solve for x
    x = 12,222,580,670.55/124,727.31
  6. Step 6: Final answer
    x = 97,994.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.