Home / 131,443.46-181,391.73-71,013.92

Finding the Fourth Proportional to 131,443.46, 181,391.73 and 71,013.92

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Solution

The fourth proportional to 131,443.46, 181,391.73 and 71,013.92 is: 97,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,443.46 : 181,391.73 = 71,013.92 : x
  2. Step 2: Convert to fraction form
    131,443.46/181,391.73 = 71,013.92/x
  3. Step 3: Cross multiply
    131,443.46x = 181,391.73 × 71,013.92
  4. Step 4: Simplify right side
    131,443.46x = 12,881,336,829.35
  5. Step 5: Solve for x
    x = 12,881,336,829.35/131,443.46
  6. Step 6: Final answer
    x = 97,999.07

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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.