Home / 109,008.88-163,170.65-75,075.75

Finding the Fourth Proportional to 109,008.88, 163,170.65 and 75,075.75

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Solution

The fourth proportional to 109,008.88, 163,170.65 and 75,075.75 is: 112,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,008.88 : 163,170.65 = 75,075.75 : x
  2. Step 2: Convert to fraction form
    109,008.88/163,170.65 = 75,075.75/x
  3. Step 3: Cross multiply
    109,008.88x = 163,170.65 × 75,075.75
  4. Step 4: Simplify right side
    109,008.88x = 12,250,159,114.43
  5. Step 5: Solve for x
    x = 12,250,159,114.43/109,008.88
  6. Step 6: Final answer
    x = 112,377.63

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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.