Home / 121,705.02-182,578.29-54,261.53

Finding the Fourth Proportional to 121,705.02, 182,578.29 and 54,261.53

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Solution

The fourth proportional to 121,705.02, 182,578.29 and 54,261.53 is: 81,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,705.02 : 182,578.29 = 54,261.53 : x
  2. Step 2: Convert to fraction form
    121,705.02/182,578.29 = 54,261.53/x
  3. Step 3: Cross multiply
    121,705.02x = 182,578.29 × 54,261.53
  4. Step 4: Simplify right side
    121,705.02x = 9,906,977,360.18
  5. Step 5: Solve for x
    x = 9,906,977,360.18/121,705.02
  6. Step 6: Final answer
    x = 81,401.55

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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.