Home / 99,536.21-137,363.12-54,215.55

Finding the Fourth Proportional to 99,536.21, 137,363.12 and 54,215.55

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Solution

The fourth proportional to 99,536.21, 137,363.12 and 54,215.55 is: 74,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,536.21 : 137,363.12 = 54,215.55 : x
  2. Step 2: Convert to fraction form
    99,536.21/137,363.12 = 54,215.55/x
  3. Step 3: Cross multiply
    99,536.21x = 137,363.12 × 54,215.55
  4. Step 4: Simplify right side
    99,536.21x = 7,447,216,829.44
  5. Step 5: Solve for x
    x = 7,447,216,829.44/99,536.21
  6. Step 6: Final answer
    x = 74,819.18

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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.