Home / 106,633.40-147,178.22-76,452.80

Finding the Fourth Proportional to 106,633.40, 147,178.22 and 76,452.80

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Solution

The fourth proportional to 106,633.40, 147,178.22 and 76,452.80 is: 105,522.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,633.40 : 147,178.22 = 76,452.80 : x
  2. Step 2: Convert to fraction form
    106,633.40/147,178.22 = 76,452.80/x
  3. Step 3: Cross multiply
    106,633.40x = 147,178.22 × 76,452.80
  4. Step 4: Simplify right side
    106,633.40x = 11,252,185,899.86
  5. Step 5: Solve for x
    x = 11,252,185,899.86/106,633.40
  6. Step 6: Final answer
    x = 105,522.16

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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.