Home / 108,780.12-150,116.16-61,033.68

Finding the Fourth Proportional to 108,780.12, 150,116.16 and 61,033.68

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Solution

The fourth proportional to 108,780.12, 150,116.16 and 61,033.68 is: 84,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,780.12 : 150,116.16 = 61,033.68 : x
  2. Step 2: Convert to fraction form
    108,780.12/150,116.16 = 61,033.68/x
  3. Step 3: Cross multiply
    108,780.12x = 150,116.16 × 61,033.68
  4. Step 4: Simplify right side
    108,780.12x = 9,162,141,672.27
  5. Step 5: Solve for x
    x = 9,162,141,672.27/108,780.12
  6. Step 6: Final answer
    x = 84,226.25

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1.5x scale

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.