Home / 103,426.17-142,743.51-63,163.29

Finding the Fourth Proportional to 103,426.17, 142,743.51 and 63,163.29

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Solution

The fourth proportional to 103,426.17, 142,743.51 and 63,163.29 is: 87,174.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426.17 : 142,743.51 = 63,163.29 : x
  2. Step 2: Convert to fraction form
    103,426.17/142,743.51 = 63,163.29/x
  3. Step 3: Cross multiply
    103,426.17x = 142,743.51 × 63,163.29
  4. Step 4: Simplify right side
    103,426.17x = 9,016,149,717.75
  5. Step 5: Solve for x
    x = 9,016,149,717.75/103,426.17
  6. Step 6: Final answer
    x = 87,174.74

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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.