Home / 106,845.90-147,401.01-64,380.30

Finding the Fourth Proportional to 106,845.90, 147,401.01 and 64,380.30

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Solution

The fourth proportional to 106,845.90, 147,401.01 and 64,380.30 is: 88,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,845.90 : 147,401.01 = 64,380.30 : x
  2. Step 2: Convert to fraction form
    106,845.90/147,401.01 = 64,380.30/x
  3. Step 3: Cross multiply
    106,845.90x = 147,401.01 × 64,380.30
  4. Step 4: Simplify right side
    106,845.90x = 9,489,721,244.10
  5. Step 5: Solve for x
    x = 9,489,721,244.10/106,845.90
  6. Step 6: Final answer
    x = 88,816.90

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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.