Home / 106,851.40-147,408.60-64,385.80

Finding the Fourth Proportional to 106,851.40, 147,408.60 and 64,385.80

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Solution

The fourth proportional to 106,851.40, 147,408.60 and 64,385.80 is: 88,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,851.40 : 147,408.60 = 64,385.80 : x
  2. Step 2: Convert to fraction form
    106,851.40/147,408.60 = 64,385.80/x
  3. Step 3: Cross multiply
    106,851.40x = 147,408.60 × 64,385.80
  4. Step 4: Simplify right side
    106,851.40x = 9,491,020,637.88
  5. Step 5: Solve for x
    x = 9,491,020,637.88/106,851.40
  6. Step 6: Final answer
    x = 88,824.49

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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.