Home / 108,780.98-150,132.69-61,037.15

Finding the Fourth Proportional to 108,780.98, 150,132.69 and 61,037.15

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Solution

The fourth proportional to 108,780.98, 150,132.69 and 61,037.15 is: 84,239.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,780.98 : 150,132.69 = 61,037.15 : x
  2. Step 2: Convert to fraction form
    108,780.98/150,132.69 = 61,037.15/x
  3. Step 3: Cross multiply
    108,780.98x = 150,132.69 × 61,037.15
  4. Step 4: Simplify right side
    108,780.98x = 9,163,670,768.77
  5. Step 5: Solve for x
    x = 9,163,670,768.77/108,780.98
  6. Step 6: Final answer
    x = 84,239.65

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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.