Home / 107,129.78-147,840.33-59,383.94

Finding the Fourth Proportional to 107,129.78, 147,840.33 and 59,383.94

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Solution

The fourth proportional to 107,129.78, 147,840.33 and 59,383.94 is: 81,950.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,129.78 : 147,840.33 = 59,383.94 : x
  2. Step 2: Convert to fraction form
    107,129.78/147,840.33 = 59,383.94/x
  3. Step 3: Cross multiply
    107,129.78x = 147,840.33 × 59,383.94
  4. Step 4: Simplify right side
    107,129.78x = 8,779,341,286.30
  5. Step 5: Solve for x
    x = 8,779,341,286.30/107,129.78
  6. Step 6: Final answer
    x = 81,950.52

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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.