Home / 103,455.47-142,765.36-58,132.33

Finding the Fourth Proportional to 103,455.47, 142,765.36 and 58,132.33

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Solution

The fourth proportional to 103,455.47, 142,765.36 and 58,132.33 is: 80,220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,455.47 : 142,765.36 = 58,132.33 : x
  2. Step 2: Convert to fraction form
    103,455.47/142,765.36 = 58,132.33/x
  3. Step 3: Cross multiply
    103,455.47x = 142,765.36 × 58,132.33
  4. Step 4: Simplify right side
    103,455.47x = 8,299,282,517.84
  5. Step 5: Solve for x
    x = 8,299,282,517.84/103,455.47
  6. Step 6: Final answer
    x = 80,220.82

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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.