Home / 172,340.06-237,821.60-99,731.32

Finding the Fourth Proportional to 172,340.06, 237,821.60 and 99,731.32

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Solution

The fourth proportional to 172,340.06, 237,821.60 and 99,731.32 is: 137,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,340.06 : 237,821.60 = 99,731.32 : x
  2. Step 2: Convert to fraction form
    172,340.06/237,821.60 = 99,731.32/x
  3. Step 3: Cross multiply
    172,340.06x = 237,821.60 × 99,731.32
  4. Step 4: Simplify right side
    172,340.06x = 23,718,262,341.84
  5. Step 5: Solve for x
    x = 23,718,262,341.84/172,340.06
  6. Step 6: Final answer
    x = 137,624.78

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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.