Home / 112,600.76-168,901.41-91,440.32

Finding the Fourth Proportional to 112,600.76, 168,901.41 and 91,440.32

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Solution

The fourth proportional to 112,600.76, 168,901.41 and 91,440.32 is: 137,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,600.76 : 168,901.41 = 91,440.32 : x
  2. Step 2: Convert to fraction form
    112,600.76/168,901.41 = 91,440.32/x
  3. Step 3: Cross multiply
    112,600.76x = 168,901.41 × 91,440.32
  4. Step 4: Simplify right side
    112,600.76x = 15,444,398,978.85
  5. Step 5: Solve for x
    x = 15,444,398,978.85/112,600.76
  6. Step 6: Final answer
    x = 137,160.70

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1.5x scale

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.