Home / 121,279.64-167,366.10-70,302.20

Finding the Fourth Proportional to 121,279.64, 167,366.10 and 70,302.20

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Solution

The fourth proportional to 121,279.64, 167,366.10 and 70,302.20 is: 97,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279.64 : 167,366.10 = 70,302.20 : x
  2. Step 2: Convert to fraction form
    121,279.64/167,366.10 = 70,302.20/x
  3. Step 3: Cross multiply
    121,279.64x = 167,366.10 × 70,302.20
  4. Step 4: Simplify right side
    121,279.64x = 11,766,205,035.42
  5. Step 5: Solve for x
    x = 11,766,205,035.42/121,279.64
  6. Step 6: Final answer
    x = 97,017.15

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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.