Home / 112,726.74-155,564.70-61,738.56

Finding the Fourth Proportional to 112,726.74, 155,564.70 and 61,738.56

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Solution

The fourth proportional to 112,726.74, 155,564.70 and 61,738.56 is: 85,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,726.74 : 155,564.70 = 61,738.56 : x
  2. Step 2: Convert to fraction form
    112,726.74/155,564.70 = 61,738.56/x
  3. Step 3: Cross multiply
    112,726.74x = 155,564.70 × 61,738.56
  4. Step 4: Simplify right side
    112,726.74x = 9,604,340,564.83
  5. Step 5: Solve for x
    x = 9,604,340,564.83/112,726.74
  6. Step 6: Final answer
    x = 85,200.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.