Home / 131,707.96-181,755.60-71,277.28

Finding the Fourth Proportional to 131,707.96, 181,755.60 and 71,277.28

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Solution

The fourth proportional to 131,707.96, 181,755.60 and 71,277.28 is: 98,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,707.96 : 181,755.60 = 71,277.28 : x
  2. Step 2: Convert to fraction form
    131,707.96/181,755.60 = 71,277.28/x
  3. Step 3: Cross multiply
    131,707.96x = 181,755.60 × 71,277.28
  4. Step 4: Simplify right side
    131,707.96x = 12,955,044,792.77
  5. Step 5: Solve for x
    x = 12,955,044,792.77/131,707.96
  6. Step 6: Final answer
    x = 98,361.90

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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.