Home / 131,185.32-181,035.14-71,569.32

Finding the Fourth Proportional to 131,185.32, 181,035.14 and 71,569.32

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Solution

The fourth proportional to 131,185.32, 181,035.14 and 71,569.32 is: 98,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,185.32 : 181,035.14 = 71,569.32 : x
  2. Step 2: Convert to fraction form
    131,185.32/181,035.14 = 71,569.32/x
  3. Step 3: Cross multiply
    131,185.32x = 181,035.14 × 71,569.32
  4. Step 4: Simplify right side
    131,185.32x = 12,956,561,865.90
  5. Step 5: Solve for x
    x = 12,956,561,865.90/131,185.32
  6. Step 6: Final answer
    x = 98,765.33

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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.