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Finding the Fourth Proportional to 108,305.47, 162,400.12 and 60,289.21

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Solution

The fourth proportional to 108,305.47, 162,400.12 and 60,289.21 is: 90,401.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,305.47 : 162,400.12 = 60,289.21 : x
  2. Step 2: Convert to fraction form
    108,305.47/162,400.12 = 60,289.21/x
  3. Step 3: Cross multiply
    108,305.47x = 162,400.12 × 60,289.21
  4. Step 4: Simplify right side
    108,305.47x = 9,790,974,938.71
  5. Step 5: Solve for x
    x = 9,790,974,938.71/108,305.47
  6. Step 6: Final answer
    x = 90,401.48

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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.