Home / 124,433.19-171,732.60-78,559.47

Finding the Fourth Proportional to 124,433.19, 171,732.60 and 78,559.47

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Solution

The fourth proportional to 124,433.19, 171,732.60 and 78,559.47 is: 108,421.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,433.19 : 171,732.60 = 78,559.47 : x
  2. Step 2: Convert to fraction form
    124,433.19/171,732.60 = 78,559.47/x
  3. Step 3: Cross multiply
    124,433.19x = 171,732.60 × 78,559.47
  4. Step 4: Simplify right side
    124,433.19x = 13,491,222,037.72
  5. Step 5: Solve for x
    x = 13,491,222,037.72/124,433.19
  6. Step 6: Final answer
    x = 108,421.41

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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.