Home / 85,115.04-127,553.06-67,267.23

Finding the Fourth Proportional to 85,115.04, 127,553.06 and 67,267.23

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Solution

The fourth proportional to 85,115.04, 127,553.06 and 67,267.23 is: 100,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,115.04 : 127,553.06 = 67,267.23 : x
  2. Step 2: Convert to fraction form
    85,115.04/127,553.06 = 67,267.23/x
  3. Step 3: Cross multiply
    85,115.04x = 127,553.06 × 67,267.23
  4. Step 4: Simplify right side
    85,115.04x = 8,580,140,687.89
  5. Step 5: Solve for x
    x = 8,580,140,687.89/85,115.04
  6. Step 6: Final answer
    x = 100,806.40

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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.