Home / 207,120.83-310,678.07-93,188.16

Finding the Fourth Proportional to 207,120.83, 310,678.07 and 93,188.16

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Solution

The fourth proportional to 207,120.83, 310,678.07 and 93,188.16 is: 139,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,120.83 : 310,678.07 = 93,188.16 : x
  2. Step 2: Convert to fraction form
    207,120.83/310,678.07 = 93,188.16/x
  3. Step 3: Cross multiply
    207,120.83x = 310,678.07 × 93,188.16
  4. Step 4: Simplify right side
    207,120.83x = 28,951,517,229.71
  5. Step 5: Solve for x
    x = 28,951,517,229.71/207,120.83
  6. Step 6: Final answer
    x = 139,780.81

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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.