Home / 131,767.36-181,838.84-71,338.52

Finding the Fourth Proportional to 131,767.36, 181,838.84 and 71,338.52

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Solution

The fourth proportional to 131,767.36, 181,838.84 and 71,338.52 is: 98,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,767.36 : 181,838.84 = 71,338.52 : x
  2. Step 2: Convert to fraction form
    131,767.36/181,838.84 = 71,338.52/x
  3. Step 3: Cross multiply
    131,767.36x = 181,838.84 × 71,338.52
  4. Step 4: Simplify right side
    131,767.36x = 12,972,113,724.12
  5. Step 5: Solve for x
    x = 12,972,113,724.12/131,767.36
  6. Step 6: Final answer
    x = 98,447.10

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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.