Home / 108,988.20-150,417.14-61,240.50

Finding the Fourth Proportional to 108,988.20, 150,417.14 and 61,240.50

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Solution

The fourth proportional to 108,988.20, 150,417.14 and 61,240.50 is: 84,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,988.20 : 150,417.14 = 61,240.50 : x
  2. Step 2: Convert to fraction form
    108,988.20/150,417.14 = 61,240.50/x
  3. Step 3: Cross multiply
    108,988.20x = 150,417.14 × 61,240.50
  4. Step 4: Simplify right side
    108,988.20x = 9,211,620,862.17
  5. Step 5: Solve for x
    x = 9,211,620,862.17/108,988.20
  6. Step 6: Final answer
    x = 84,519.43

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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.