Home / 124,139.25-186,209.35-30,645

Finding the Fourth Proportional to 124,139.25, 186,209.35 and 30,645

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Solution

The fourth proportional to 124,139.25, 186,209.35 and 30,645 is: 45,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,139.25 : 186,209.35 = 30,645 : x
  2. Step 2: Convert to fraction form
    124,139.25/186,209.35 = 30,645/x
  3. Step 3: Cross multiply
    124,139.25x = 186,209.35 × 30,645
  4. Step 4: Simplify right side
    124,139.25x = 5,706,385,454.14
  5. Step 5: Solve for x
    x = 5,706,385,454.14/124,139.25
  6. Step 6: Final answer
    x = 45,967.62

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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.