Home / 124,616.40-186,924.60-91,155.30

Finding the Fourth Proportional to 124,616.40, 186,924.60 and 91,155.30

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Solution

The fourth proportional to 124,616.40, 186,924.60 and 91,155.30 is: 136,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,616.40 : 186,924.60 = 91,155.30 : x
  2. Step 2: Convert to fraction form
    124,616.40/186,924.60 = 91,155.30/x
  3. Step 3: Cross multiply
    124,616.40x = 186,924.60 × 91,155.30
  4. Step 4: Simplify right side
    124,616.40x = 17,039,167,990.38
  5. Step 5: Solve for x
    x = 17,039,167,990.38/124,616.40
  6. Step 6: Final answer
    x = 136,732.95

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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.