Home / 145,971.59-201,438.11-82,309.44

Finding the Fourth Proportional to 145,971.59, 201,438.11 and 82,309.44

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Solution

The fourth proportional to 145,971.59, 201,438.11 and 82,309.44 is: 113,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,971.59 : 201,438.11 = 82,309.44 : x
  2. Step 2: Convert to fraction form
    145,971.59/201,438.11 = 82,309.44/x
  3. Step 3: Cross multiply
    145,971.59x = 201,438.11 × 82,309.44
  4. Step 4: Simplify right side
    145,971.59x = 16,580,258,234.53
  5. Step 5: Solve for x
    x = 16,580,258,234.53/145,971.59
  6. Step 6: Final answer
    x = 113,585.51

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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.