Home / 106,626.78-147,144.60-64,187.64

Finding the Fourth Proportional to 106,626.78, 147,144.60 and 64,187.64

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Solution

The fourth proportional to 106,626.78, 147,144.60 and 64,187.64 is: 88,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,626.78 : 147,144.60 = 64,187.64 : x
  2. Step 2: Convert to fraction form
    106,626.78/147,144.60 = 64,187.64/x
  3. Step 3: Cross multiply
    106,626.78x = 147,144.60 × 64,187.64
  4. Step 4: Simplify right side
    106,626.78x = 9,444,864,612.74
  5. Step 5: Solve for x
    x = 9,444,864,612.74/106,626.78
  6. Step 6: Final answer
    x = 88,578.73

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1.5x scale

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.