Home / 207,355.72-310,848.36-80,966.56

Finding the Fourth Proportional to 207,355.72, 310,848.36 and 80,966.56

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Solution

The fourth proportional to 207,355.72, 310,848.36 and 80,966.56 is: 121,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,355.72 : 310,848.36 = 80,966.56 : x
  2. Step 2: Convert to fraction form
    207,355.72/310,848.36 = 80,966.56/x
  3. Step 3: Cross multiply
    207,355.72x = 310,848.36 × 80,966.56
  4. Step 4: Simplify right side
    207,355.72x = 25,168,323,370.38
  5. Step 5: Solve for x
    x = 25,168,323,370.38/207,355.72
  6. Step 6: Final answer
    x = 121,377.52

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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.