Home / 124,528.20-186,919.40-91,149.10

Finding the Fourth Proportional to 124,528.20, 186,919.40 and 91,149.10

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Solution

The fourth proportional to 124,528.20, 186,919.40 and 91,149.10 is: 136,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,528.20 : 186,919.40 = 91,149.10 : x
  2. Step 2: Convert to fraction form
    124,528.20/186,919.40 = 91,149.10/x
  3. Step 3: Cross multiply
    124,528.20x = 186,919.40 × 91,149.10
  4. Step 4: Simplify right side
    124,528.20x = 17,037,535,082.54
  5. Step 5: Solve for x
    x = 17,037,535,082.54/124,528.20
  6. Step 6: Final answer
    x = 136,816.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.