Home / 180,428.97-248,990.15-99,856.65

Finding the Fourth Proportional to 180,428.97, 248,990.15 and 99,856.65

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Solution

The fourth proportional to 180,428.97, 248,990.15 and 99,856.65 is: 137,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,428.97 : 248,990.15 = 99,856.65 : x
  2. Step 2: Convert to fraction form
    180,428.97/248,990.15 = 99,856.65/x
  3. Step 3: Cross multiply
    180,428.97x = 248,990.15 × 99,856.65
  4. Step 4: Simplify right side
    180,428.97x = 24,863,321,762.71
  5. Step 5: Solve for x
    x = 24,863,321,762.71/180,428.97
  6. Step 6: Final answer
    x = 137,801.16

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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.