Home / 121,411.08-167,549.38-66,969.52

Finding the Fourth Proportional to 121,411.08, 167,549.38 and 66,969.52

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Solution

The fourth proportional to 121,411.08, 167,549.38 and 66,969.52 is: 92,419.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,411.08 : 167,549.38 = 66,969.52 : x
  2. Step 2: Convert to fraction form
    121,411.08/167,549.38 = 66,969.52/x
  3. Step 3: Cross multiply
    121,411.08x = 167,549.38 × 66,969.52
  4. Step 4: Simplify right side
    121,411.08x = 11,220,701,554.90
  5. Step 5: Solve for x
    x = 11,220,701,554.90/121,411.08
  6. Step 6: Final answer
    x = 92,419.09

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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.