Home / 110,531.27-152,602.83-78,334.17

Finding the Fourth Proportional to 110,531.27, 152,602.83 and 78,334.17

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Solution

The fourth proportional to 110,531.27, 152,602.83 and 78,334.17 is: 108,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,531.27 : 152,602.83 = 78,334.17 : x
  2. Step 2: Convert to fraction form
    110,531.27/152,602.83 = 78,334.17/x
  3. Step 3: Cross multiply
    110,531.27x = 152,602.83 × 78,334.17
  4. Step 4: Simplify right side
    110,531.27x = 11,954,016,027.70
  5. Step 5: Solve for x
    x = 11,954,016,027.70/110,531.27
  6. Step 6: Final answer
    x = 108,150.54

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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.