Home / 121,240.95-167,312.33-67,530.66

Finding the Fourth Proportional to 121,240.95, 167,312.33 and 67,530.66

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Solution

The fourth proportional to 121,240.95, 167,312.33 and 67,530.66 is: 93,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,240.95 : 167,312.33 = 67,530.66 : x
  2. Step 2: Convert to fraction form
    121,240.95/167,312.33 = 67,530.66/x
  3. Step 3: Cross multiply
    121,240.95x = 167,312.33 × 67,530.66
  4. Step 4: Simplify right side
    121,240.95x = 11,298,711,733.38
  5. Step 5: Solve for x
    x = 11,298,711,733.38/121,240.95
  6. Step 6: Final answer
    x = 93,192.21

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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.