Home / 121,247.10-167,340.78-92,512.35

Finding the Fourth Proportional to 121,247.10, 167,340.78 and 92,512.35

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Solution

The fourth proportional to 121,247.10, 167,340.78 and 92,512.35 is: 127,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,247.10 : 167,340.78 = 92,512.35 : x
  2. Step 2: Convert to fraction form
    121,247.10/167,340.78 = 92,512.35/x
  3. Step 3: Cross multiply
    121,247.10x = 167,340.78 × 92,512.35
  4. Step 4: Simplify right side
    121,247.10x = 15,481,088,808.63
  5. Step 5: Solve for x
    x = 15,481,088,808.63/121,247.10
  6. Step 6: Final answer
    x = 127,682.14

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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.