Home / 108,902.16-150,273.78-61,155.12

Finding the Fourth Proportional to 108,902.16, 150,273.78 and 61,155.12

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Solution

The fourth proportional to 108,902.16, 150,273.78 and 61,155.12 is: 84,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,902.16 : 150,273.78 = 61,155.12 : x
  2. Step 2: Convert to fraction form
    108,902.16/150,273.78 = 61,155.12/x
  3. Step 3: Cross multiply
    108,902.16x = 150,273.78 × 61,155.12
  4. Step 4: Simplify right side
    108,902.16x = 9,190,011,048.75
  5. Step 5: Solve for x
    x = 9,190,011,048.75/108,902.16
  6. Step 6: Final answer
    x = 84,387.78

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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.