Home / 111,471,208.70-167,206,813.05-85,962,040.70

Finding the Fourth Proportional to 111,471,208.70, 167,206,813.05 and 85,962,040.70

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Solution

The fourth proportional to 111,471,208.70, 167,206,813.05 and 85,962,040.70 is: 128,943,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,471,208.70 : 167,206,813.05 = 85,962,040.70 : x
  2. Step 2: Convert to fraction form
    111,471,208.70/167,206,813.05 = 85,962,040.70/x
  3. Step 3: Cross multiply
    111,471,208.70x = 167,206,813.05 × 85,962,040.70
  4. Step 4: Simplify right side
    111,471,208.70x = 14,373,438,868,721,392
  5. Step 5: Solve for x
    x = 14,373,438,868,721,392/111,471,208.70
  6. Step 6: Final answer
    x = 128,943,061.05

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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.