Home / 121,258.52-167,330.12-66,808.91

Finding the Fourth Proportional to 121,258.52, 167,330.12 and 66,808.91

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Solution

The fourth proportional to 121,258.52, 167,330.12 and 66,808.91 is: 92,192.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,258.52 : 167,330.12 = 66,808.91 : x
  2. Step 2: Convert to fraction form
    121,258.52/167,330.12 = 66,808.91/x
  3. Step 3: Cross multiply
    121,258.52x = 167,330.12 × 66,808.91
  4. Step 4: Simplify right side
    121,258.52x = 11,179,141,756.67
  5. Step 5: Solve for x
    x = 11,179,141,756.67/121,258.52
  6. Step 6: Final answer
    x = 92,192.63

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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.