Home / 134,645.22-185,801.95-74,212.54

Finding the Fourth Proportional to 134,645.22, 185,801.95 and 74,212.54

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Solution

The fourth proportional to 134,645.22, 185,801.95 and 74,212.54 is: 102,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,645.22 : 185,801.95 = 74,212.54 : x
  2. Step 2: Convert to fraction form
    134,645.22/185,801.95 = 74,212.54/x
  3. Step 3: Cross multiply
    134,645.22x = 185,801.95 × 74,212.54
  4. Step 4: Simplify right side
    134,645.22x = 13,788,834,646.45
  5. Step 5: Solve for x
    x = 13,788,834,646.45/134,645.22
  6. Step 6: Final answer
    x = 102,408.65

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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.