Home / 108,079.08-162,057.78-74,384.70

Finding the Fourth Proportional to 108,079.08, 162,057.78 and 74,384.70

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Solution

The fourth proportional to 108,079.08, 162,057.78 and 74,384.70 is: 111,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,079.08 : 162,057.78 = 74,384.70 : x
  2. Step 2: Convert to fraction form
    108,079.08/162,057.78 = 74,384.70/x
  3. Step 3: Cross multiply
    108,079.08x = 162,057.78 × 74,384.70
  4. Step 4: Simplify right side
    108,079.08x = 12,054,619,347.97
  5. Step 5: Solve for x
    x = 12,054,619,347.97/108,079.08
  6. Step 6: Final answer
    x = 111,535.18

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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.