Home / 103,686.23-155,523.85-51,077.95

Finding the Fourth Proportional to 103,686.23, 155,523.85 and 51,077.95

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Solution

The fourth proportional to 103,686.23, 155,523.85 and 51,077.95 is: 76,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.23 : 155,523.85 = 51,077.95 : x
  2. Step 2: Convert to fraction form
    103,686.23/155,523.85 = 51,077.95/x
  3. Step 3: Cross multiply
    103,686.23x = 155,523.85 × 51,077.95
  4. Step 4: Simplify right side
    103,686.23x = 7,943,839,434.11
  5. Step 5: Solve for x
    x = 7,943,839,434.11/103,686.23
  6. Step 6: Final answer
    x = 76,614.22

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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.