Home / 131,765.74-181,834.52-71,335.89

Finding the Fourth Proportional to 131,765.74, 181,834.52 and 71,335.89

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Solution

The fourth proportional to 131,765.74, 181,834.52 and 71,335.89 is: 98,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,765.74 : 181,834.52 = 71,335.89 : x
  2. Step 2: Convert to fraction form
    131,765.74/181,834.52 = 71,335.89/x
  3. Step 3: Cross multiply
    131,765.74x = 181,834.52 × 71,335.89
  4. Step 4: Simplify right side
    131,765.74x = 12,971,327,361.51
  5. Step 5: Solve for x
    x = 12,971,327,361.51/131,765.74
  6. Step 6: Final answer
    x = 98,442.34

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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.