Home / 121,657.16-167,885.22-67,943.12

Finding the Fourth Proportional to 121,657.16, 167,885.22 and 67,943.12

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Solution

The fourth proportional to 121,657.16, 167,885.22 and 67,943.12 is: 93,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,657.16 : 167,885.22 = 67,943.12 : x
  2. Step 2: Convert to fraction form
    121,657.16/167,885.22 = 67,943.12/x
  3. Step 3: Cross multiply
    121,657.16x = 167,885.22 × 67,943.12
  4. Step 4: Simplify right side
    121,657.16x = 11,406,645,648.69
  5. Step 5: Solve for x
    x = 11,406,645,648.69/121,657.16
  6. Step 6: Final answer
    x = 93,760.58

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1.5x scale

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.