Home / 112,921.23-155,440.19-97,600.80

Finding the Fourth Proportional to 112,921.23, 155,440.19 and 97,600.80

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Solution

The fourth proportional to 112,921.23, 155,440.19 and 97,600.80 is: 134,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,921.23 : 155,440.19 = 97,600.80 : x
  2. Step 2: Convert to fraction form
    112,921.23/155,440.19 = 97,600.80/x
  3. Step 3: Cross multiply
    112,921.23x = 155,440.19 × 97,600.80
  4. Step 4: Simplify right side
    112,921.23x = 15,171,087,140.15
  5. Step 5: Solve for x
    x = 15,171,087,140.15/112,921.23
  6. Step 6: Final answer
    x = 134,351.06

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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.