Home / 103,148.26-142,391.23-64,963.92

Finding the Fourth Proportional to 103,148.26, 142,391.23 and 64,963.92

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Solution

The fourth proportional to 103,148.26, 142,391.23 and 64,963.92 is: 89,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,148.26 : 142,391.23 = 64,963.92 : x
  2. Step 2: Convert to fraction form
    103,148.26/142,391.23 = 64,963.92/x
  3. Step 3: Cross multiply
    103,148.26x = 142,391.23 × 64,963.92
  4. Step 4: Simplify right side
    103,148.26x = 9,250,292,474.42
  5. Step 5: Solve for x
    x = 9,250,292,474.42/103,148.26
  6. Step 6: Final answer
    x = 89,679.58

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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.