Home / 131,911.81-182,038.45-71,481.93

Finding the Fourth Proportional to 131,911.81, 182,038.45 and 71,481.93

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Solution

The fourth proportional to 131,911.81, 182,038.45 and 71,481.93 is: 98,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,911.81 : 182,038.45 = 71,481.93 : x
  2. Step 2: Convert to fraction form
    131,911.81/182,038.45 = 71,481.93/x
  3. Step 3: Cross multiply
    131,911.81x = 182,038.45 × 71,481.93
  4. Step 4: Simplify right side
    131,911.81x = 13,012,459,740.21
  5. Step 5: Solve for x
    x = 13,012,459,740.21/131,911.81
  6. Step 6: Final answer
    x = 98,645.15

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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.