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Finding the Fourth Proportional to 108,780.16, 150,116.47 and 61,037.95

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Solution

The fourth proportional to 108,780.16, 150,116.47 and 61,037.95 is: 84,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,780.16 : 150,116.47 = 61,037.95 : x
  2. Step 2: Convert to fraction form
    108,780.16/150,116.47 = 61,037.95/x
  3. Step 3: Cross multiply
    108,780.16x = 150,116.47 × 61,037.95
  4. Step 4: Simplify right side
    108,780.16x = 9,162,801,590.04
  5. Step 5: Solve for x
    x = 9,162,801,590.04/108,780.16
  6. Step 6: Final answer
    x = 84,232.29

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