Home / 104,215.55-143,824.58-63,395.64

Finding the Fourth Proportional to 104,215.55, 143,824.58 and 63,395.64

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Solution

The fourth proportional to 104,215.55, 143,824.58 and 63,395.64 is: 87,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,215.55 : 143,824.58 = 63,395.64 : x
  2. Step 2: Convert to fraction form
    104,215.55/143,824.58 = 63,395.64/x
  3. Step 3: Cross multiply
    104,215.55x = 143,824.58 × 63,395.64
  4. Step 4: Simplify right side
    104,215.55x = 9,117,850,979.85
  5. Step 5: Solve for x
    x = 9,117,850,979.85/104,215.55
  6. Step 6: Final answer
    x = 87,490.32

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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.