Home / 162,025.20-243,037.80-83,147.40

Finding the Fourth Proportional to 162,025.20, 243,037.80 and 83,147.40

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Solution

The fourth proportional to 162,025.20, 243,037.80 and 83,147.40 is: 124,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,025.20 : 243,037.80 = 83,147.40 : x
  2. Step 2: Convert to fraction form
    162,025.20/243,037.80 = 83,147.40/x
  3. Step 3: Cross multiply
    162,025.20x = 243,037.80 × 83,147.40
  4. Step 4: Simplify right side
    162,025.20x = 20,207,961,171.72
  5. Step 5: Solve for x
    x = 20,207,961,171.72/162,025.20
  6. Step 6: Final answer
    x = 124,721.10

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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.