Home / 145,981.85-201,454.97-82,319.66

Finding the Fourth Proportional to 145,981.85, 201,454.97 and 82,319.66

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Solution

The fourth proportional to 145,981.85, 201,454.97 and 82,319.66 is: 113,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,981.85 : 201,454.97 = 82,319.66 : x
  2. Step 2: Convert to fraction form
    145,981.85/201,454.97 = 82,319.66/x
  3. Step 3: Cross multiply
    145,981.85x = 201,454.97 × 82,319.66
  4. Step 4: Simplify right side
    145,981.85x = 16,583,703,972.29
  5. Step 5: Solve for x
    x = 16,583,703,972.29/145,981.85
  6. Step 6: Final answer
    x = 113,601.14

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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.