Home / 103,348.12-142,663.74-69,859.48

Finding the Fourth Proportional to 103,348.12, 142,663.74 and 69,859.48

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Solution

The fourth proportional to 103,348.12, 142,663.74 and 69,859.48 is: 96,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,348.12 : 142,663.74 = 69,859.48 : x
  2. Step 2: Convert to fraction form
    103,348.12/142,663.74 = 69,859.48/x
  3. Step 3: Cross multiply
    103,348.12x = 142,663.74 × 69,859.48
  4. Step 4: Simplify right side
    103,348.12x = 9,966,414,691.26
  5. Step 5: Solve for x
    x = 9,966,414,691.26/103,348.12
  6. Step 6: Final answer
    x = 96,435.37

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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.