Home / 125,117.40-187,696.66-40,853.28

Finding the Fourth Proportional to 125,117.40, 187,696.66 and 40,853.28

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Solution

The fourth proportional to 125,117.40, 187,696.66 and 40,853.28 is: 61,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,117.40 : 187,696.66 = 40,853.28 : x
  2. Step 2: Convert to fraction form
    125,117.40/187,696.66 = 40,853.28/x
  3. Step 3: Cross multiply
    125,117.40x = 187,696.66 × 40,853.28
  4. Step 4: Simplify right side
    125,117.40x = 7,668,024,206.04
  5. Step 5: Solve for x
    x = 7,668,024,206.04/125,117.40
  6. Step 6: Final answer
    x = 61,286.63

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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.