Home / 68,075.12-102,117.56-18,154.95

Finding the Fourth Proportional to 68,075.12, 102,117.56 and 18,154.95

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Solution

The fourth proportional to 68,075.12, 102,117.56 and 18,154.95 is: 27,233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.12 : 102,117.56 = 18,154.95 : x
  2. Step 2: Convert to fraction form
    68,075.12/102,117.56 = 18,154.95/x
  3. Step 3: Cross multiply
    68,075.12x = 102,117.56 × 18,154.95
  4. Step 4: Simplify right side
    68,075.12x = 1,853,939,105.15
  5. Step 5: Solve for x
    x = 1,853,939,105.15/68,075.12
  6. Step 6: Final answer
    x = 27,233.73

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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.