Home / 112,360.71-155,120.04-76,603.26

Finding the Fourth Proportional to 112,360.71, 155,120.04 and 76,603.26

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Solution

The fourth proportional to 112,360.71, 155,120.04 and 76,603.26 is: 105,754.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,360.71 : 155,120.04 = 76,603.26 : x
  2. Step 2: Convert to fraction form
    112,360.71/155,120.04 = 76,603.26/x
  3. Step 3: Cross multiply
    112,360.71x = 155,120.04 × 76,603.26
  4. Step 4: Simplify right side
    112,360.71x = 11,882,700,755.33
  5. Step 5: Solve for x
    x = 11,882,700,755.33/112,360.71
  6. Step 6: Final answer
    x = 105,754.95

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1.5x scale

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.