Home / 109,655,107.20-164,482,660.80-85,261,965.30

Finding the Fourth Proportional to 109,655,107.20, 164,482,660.80 and 85,261,965.30

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Solution

The fourth proportional to 109,655,107.20, 164,482,660.80 and 85,261,965.30 is: 127,892,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,655,107.20 : 164,482,660.80 = 85,261,965.30 : x
  2. Step 2: Convert to fraction form
    109,655,107.20/164,482,660.80 = 85,261,965.30/x
  3. Step 3: Cross multiply
    109,655,107.20x = 164,482,660.80 × 85,261,965.30
  4. Step 4: Simplify right side
    109,655,107.20x = 14,024,114,917,581,270
  5. Step 5: Solve for x
    x = 14,024,114,917,581,270/109,655,107.20
  6. Step 6: Final answer
    x = 127,892,947.95

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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.