Home / 165,177.76-247,856.88-71,683.36

Finding the Fourth Proportional to 165,177.76, 247,856.88 and 71,683.36

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Solution

The fourth proportional to 165,177.76, 247,856.88 and 71,683.36 is: 107,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,177.76 : 247,856.88 = 71,683.36 : x
  2. Step 2: Convert to fraction form
    165,177.76/247,856.88 = 71,683.36/x
  3. Step 3: Cross multiply
    165,177.76x = 247,856.88 × 71,683.36
  4. Step 4: Simplify right side
    165,177.76x = 17,767,213,957.52
  5. Step 5: Solve for x
    x = 17,767,213,957.52/165,177.76
  6. Step 6: Final answer
    x = 107,564.20

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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.