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Finding the Fourth Proportional to 108,937.48, 150,347.75 and 61,190.81

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Solution

The fourth proportional to 108,937.48, 150,347.75 and 61,190.81 is: 84,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,937.48 : 150,347.75 = 61,190.81 : x
  2. Step 2: Convert to fraction form
    108,937.48/150,347.75 = 61,190.81/x
  3. Step 3: Cross multiply
    108,937.48x = 150,347.75 × 61,190.81
  4. Step 4: Simplify right side
    108,937.48x = 9,199,900,604.18
  5. Step 5: Solve for x
    x = 9,199,900,604.18/108,937.48
  6. Step 6: Final answer
    x = 84,451.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.