Home / 99,504.03-137,406.78-63,217.20

Finding the Fourth Proportional to 99,504.03, 137,406.78 and 63,217.20

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Solution

The fourth proportional to 99,504.03, 137,406.78 and 63,217.20 is: 87,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,504.03 : 137,406.78 = 63,217.20 : x
  2. Step 2: Convert to fraction form
    99,504.03/137,406.78 = 63,217.20/x
  3. Step 3: Cross multiply
    99,504.03x = 137,406.78 × 63,217.20
  4. Step 4: Simplify right side
    99,504.03x = 8,686,471,892.62
  5. Step 5: Solve for x
    x = 8,686,471,892.62/99,504.03
  6. Step 6: Final answer
    x = 87,297.69

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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.