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Finding the Fourth Proportional to 100,816.58, 139,069.23 and 63,025.22

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Solution

The fourth proportional to 100,816.58, 139,069.23 and 63,025.22 is: 86,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,816.58 : 139,069.23 = 63,025.22 : x
  2. Step 2: Convert to fraction form
    100,816.58/139,069.23 = 63,025.22/x
  3. Step 3: Cross multiply
    100,816.58x = 139,069.23 × 63,025.22
  4. Step 4: Simplify right side
    100,816.58x = 8,764,869,104.57
  5. Step 5: Solve for x
    x = 8,764,869,104.57/100,816.58
  6. Step 6: Final answer
    x = 86,938.76

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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.