Home / 84,845.10-127,267.65-71,723.10

Finding the Fourth Proportional to 84,845.10, 127,267.65 and 71,723.10

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Solution

The fourth proportional to 84,845.10, 127,267.65 and 71,723.10 is: 107,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,845.10 : 127,267.65 = 71,723.10 : x
  2. Step 2: Convert to fraction form
    84,845.10/127,267.65 = 71,723.10/x
  3. Step 3: Cross multiply
    84,845.10x = 127,267.65 × 71,723.10
  4. Step 4: Simplify right side
    84,845.10x = 9,128,030,387.72
  5. Step 5: Solve for x
    x = 9,128,030,387.72/84,845.10
  6. Step 6: Final answer
    x = 107,584.65

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1.5x scale

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.