Home / 108,236.90-162,381.78-76,278.32

Finding the Fourth Proportional to 108,236.90, 162,381.78 and 76,278.32

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Solution

The fourth proportional to 108,236.90, 162,381.78 and 76,278.32 is: 114,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,236.90 : 162,381.78 = 76,278.32 : x
  2. Step 2: Convert to fraction form
    108,236.90/162,381.78 = 76,278.32/x
  3. Step 3: Cross multiply
    108,236.90x = 162,381.78 × 76,278.32
  4. Step 4: Simplify right side
    108,236.90x = 12,386,209,174.03
  5. Step 5: Solve for x
    x = 12,386,209,174.03/108,236.90
  6. Step 6: Final answer
    x = 114,436.10

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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.