Home / 121,145.66-167,181.02-67,429.53

Finding the Fourth Proportional to 121,145.66, 167,181.02 and 67,429.53

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Solution

The fourth proportional to 121,145.66, 167,181.02 and 67,429.53 is: 93,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,145.66 : 167,181.02 = 67,429.53 : x
  2. Step 2: Convert to fraction form
    121,145.66/167,181.02 = 67,429.53/x
  3. Step 3: Cross multiply
    121,145.66x = 167,181.02 × 67,429.53
  4. Step 4: Simplify right side
    121,145.66x = 11,272,937,428.33
  5. Step 5: Solve for x
    x = 11,272,937,428.33/121,145.66
  6. Step 6: Final answer
    x = 93,052.75

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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.