Home / 145,541.46-200,841.99-81,008.56

Finding the Fourth Proportional to 145,541.46, 200,841.99 and 81,008.56

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Solution

The fourth proportional to 145,541.46, 200,841.99 and 81,008.56 is: 111,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,541.46 : 200,841.99 = 81,008.56 : x
  2. Step 2: Convert to fraction form
    145,541.46/200,841.99 = 81,008.56/x
  3. Step 3: Cross multiply
    145,541.46x = 200,841.99 × 81,008.56
  4. Step 4: Simplify right side
    145,541.46x = 16,269,920,397.43
  5. Step 5: Solve for x
    x = 16,269,920,397.43/145,541.46
  6. Step 6: Final answer
    x = 111,788.90

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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.