Home / 107,028.40-147,704.52-61,713.76

Finding the Fourth Proportional to 107,028.40, 147,704.52 and 61,713.76

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Solution

The fourth proportional to 107,028.40, 147,704.52 and 61,713.76 is: 85,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,028.40 : 147,704.52 = 61,713.76 : x
  2. Step 2: Convert to fraction form
    107,028.40/147,704.52 = 61,713.76/x
  3. Step 3: Cross multiply
    107,028.40x = 147,704.52 × 61,713.76
  4. Step 4: Simplify right side
    107,028.40x = 9,115,401,298.20
  5. Step 5: Solve for x
    x = 9,115,401,298.20/107,028.40
  6. Step 6: Final answer
    x = 85,168.06

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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.