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Finding the Fourth Proportional to 98,109.56, 147,165.73 and 27,988.88

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Solution

The fourth proportional to 98,109.56, 147,165.73 and 27,988.88 is: 41,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,109.56 : 147,165.73 = 27,988.88 : x
  2. Step 2: Convert to fraction form
    98,109.56/147,165.73 = 27,988.88/x
  3. Step 3: Cross multiply
    98,109.56x = 147,165.73 × 27,988.88
  4. Step 4: Simplify right side
    98,109.56x = 4,119,003,151.28
  5. Step 5: Solve for x
    x = 4,119,003,151.28/98,109.56
  6. Step 6: Final answer
    x = 41,983.71

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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.