Home / 221,964.16-306,294.60-137,082.64

Finding the Fourth Proportional to 221,964.16, 306,294.60 and 137,082.64

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Solution

The fourth proportional to 221,964.16, 306,294.60 and 137,082.64 is: 189,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,964.16 : 306,294.60 = 137,082.64 : x
  2. Step 2: Convert to fraction form
    221,964.16/306,294.60 = 137,082.64/x
  3. Step 3: Cross multiply
    221,964.16x = 306,294.60 × 137,082.64
  4. Step 4: Simplify right side
    221,964.16x = 41,987,672,385.74
  5. Step 5: Solve for x
    x = 41,987,672,385.74/221,964.16
  6. Step 6: Final answer
    x = 189,164.20

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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.