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Finding the Fourth Proportional to 121,360.84, 167,478.72 and 67,649.24

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Solution

The fourth proportional to 121,360.84, 167,478.72 and 67,649.24 is: 93,356.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360.84 : 167,478.72 = 67,649.24 : x
  2. Step 2: Convert to fraction form
    121,360.84/167,478.72 = 67,649.24/x
  3. Step 3: Cross multiply
    121,360.84x = 167,478.72 × 67,649.24
  4. Step 4: Simplify right side
    121,360.84x = 11,329,808,124.17
  5. Step 5: Solve for x
    x = 11,329,808,124.17/121,360.84
  6. Step 6: Final answer
    x = 93,356.38

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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.