Home / 108,619.95-162,907.65-41,128.71

Finding the Fourth Proportional to 108,619.95, 162,907.65 and 41,128.71

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Solution

The fourth proportional to 108,619.95, 162,907.65 and 41,128.71 is: 61,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,619.95 : 162,907.65 = 41,128.71 : x
  2. Step 2: Convert to fraction form
    108,619.95/162,907.65 = 41,128.71/x
  3. Step 3: Cross multiply
    108,619.95x = 162,907.65 × 41,128.71
  4. Step 4: Simplify right side
    108,619.95x = 6,700,181,493.63
  5. Step 5: Solve for x
    x = 6,700,181,493.63/108,619.95
  6. Step 6: Final answer
    x = 61,684.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.