Home / 115,908.16-159,896.82-75,603.64

Finding the Fourth Proportional to 115,908.16, 159,896.82 and 75,603.64

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Solution

The fourth proportional to 115,908.16, 159,896.82 and 75,603.64 is: 104,296.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,908.16 : 159,896.82 = 75,603.64 : x
  2. Step 2: Convert to fraction form
    115,908.16/159,896.82 = 75,603.64/x
  3. Step 3: Cross multiply
    115,908.16x = 159,896.82 × 75,603.64
  4. Step 4: Simplify right side
    115,908.16x = 12,088,781,616.42
  5. Step 5: Solve for x
    x = 12,088,781,616.42/115,908.16
  6. Step 6: Final answer
    x = 104,296.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.