Home / 154,414.60-213,082.24-86,420.10

Finding the Fourth Proportional to 154,414.60, 213,082.24 and 86,420.10

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Solution

The fourth proportional to 154,414.60, 213,082.24 and 86,420.10 is: 119,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,414.60 : 213,082.24 = 86,420.10 : x
  2. Step 2: Convert to fraction form
    154,414.60/213,082.24 = 86,420.10/x
  3. Step 3: Cross multiply
    154,414.60x = 213,082.24 × 86,420.10
  4. Step 4: Simplify right side
    154,414.60x = 18,414,588,489.02
  5. Step 5: Solve for x
    x = 18,414,588,489.02/154,414.60
  6. Step 6: Final answer
    x = 119,254.19

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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.