Home / 162,217.56-243,243.27-86,359.20

Finding the Fourth Proportional to 162,217.56, 243,243.27 and 86,359.20

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Solution

The fourth proportional to 162,217.56, 243,243.27 and 86,359.20 is: 129,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,217.56 : 243,243.27 = 86,359.20 : x
  2. Step 2: Convert to fraction form
    162,217.56/243,243.27 = 86,359.20/x
  3. Step 3: Cross multiply
    162,217.56x = 243,243.27 × 86,359.20
  4. Step 4: Simplify right side
    162,217.56x = 21,006,294,202.58
  5. Step 5: Solve for x
    x = 21,006,294,202.58/162,217.56
  6. Step 6: Final answer
    x = 129,494.58

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1.5x scale

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.