Home / 121,155.42-167,193.10-66,706.48

Finding the Fourth Proportional to 121,155.42, 167,193.10 and 66,706.48

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Solution

The fourth proportional to 121,155.42, 167,193.10 and 66,706.48 is: 92,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,155.42 : 167,193.10 = 66,706.48 : x
  2. Step 2: Convert to fraction form
    121,155.42/167,193.10 = 66,706.48/x
  3. Step 3: Cross multiply
    121,155.42x = 167,193.10 × 66,706.48
  4. Step 4: Simplify right side
    121,155.42x = 11,152,862,785.38
  5. Step 5: Solve for x
    x = 11,152,862,785.38/121,155.42
  6. Step 6: Final answer
    x = 92,054.18

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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.