Home / 148,742.24-205,265.04-85,082.72

Finding the Fourth Proportional to 148,742.24, 205,265.04 and 85,082.72

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Solution

The fourth proportional to 148,742.24, 205,265.04 and 85,082.72 is: 117,414.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,742.24 : 205,265.04 = 85,082.72 : x
  2. Step 2: Convert to fraction form
    148,742.24/205,265.04 = 85,082.72/x
  3. Step 3: Cross multiply
    148,742.24x = 205,265.04 × 85,082.72
  4. Step 4: Simplify right side
    148,742.24x = 17,464,507,924.11
  5. Step 5: Solve for x
    x = 17,464,507,924.11/148,742.24
  6. Step 6: Final answer
    x = 117,414.58

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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.