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Finding the Fourth Proportional to 108,779.91, 150,116.13 and 61,037.70

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Solution

The fourth proportional to 108,779.91, 150,116.13 and 61,037.70 is: 84,231.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,779.91 : 150,116.13 = 61,037.70 : x
  2. Step 2: Convert to fraction form
    108,779.91/150,116.13 = 61,037.70/x
  3. Step 3: Cross multiply
    108,779.91x = 150,116.13 × 61,037.70
  4. Step 4: Simplify right side
    108,779.91x = 9,162,743,308.10
  5. Step 5: Solve for x
    x = 9,162,743,308.10/108,779.91
  6. Step 6: Final answer
    x = 84,231.94

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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.