Home / 108,046.20-161,972.10-70,624.20

Finding the Fourth Proportional to 108,046.20, 161,972.10 and 70,624.20

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Solution

The fourth proportional to 108,046.20, 161,972.10 and 70,624.20 is: 105,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,046.20 : 161,972.10 = 70,624.20 : x
  2. Step 2: Convert to fraction form
    108,046.20/161,972.10 = 70,624.20/x
  3. Step 3: Cross multiply
    108,046.20x = 161,972.10 × 70,624.20
  4. Step 4: Simplify right side
    108,046.20x = 11,439,149,984.82
  5. Step 5: Solve for x
    x = 11,439,149,984.82/108,046.20
  6. Step 6: Final answer
    x = 105,872.77

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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.