Home / 103,810.10-143,260.79-63,523.13

Finding the Fourth Proportional to 103,810.10, 143,260.79 and 63,523.13

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Solution

The fourth proportional to 103,810.10, 143,260.79 and 63,523.13 is: 87,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,810.10 : 143,260.79 = 63,523.13 : x
  2. Step 2: Convert to fraction form
    103,810.10/143,260.79 = 63,523.13/x
  3. Step 3: Cross multiply
    103,810.10x = 143,260.79 × 63,523.13
  4. Step 4: Simplify right side
    103,810.10x = 9,100,372,753.15
  5. Step 5: Solve for x
    x = 9,100,372,753.15/103,810.10
  6. Step 6: Final answer
    x = 87,663.66

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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.