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Finding the Fourth Proportional to 100,903.80, 151,282.80 and 56,544.15

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Solution

The fourth proportional to 100,903.80, 151,282.80 and 56,544.15 is: 84,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,903.80 : 151,282.80 = 56,544.15 : x
  2. Step 2: Convert to fraction form
    100,903.80/151,282.80 = 56,544.15/x
  3. Step 3: Cross multiply
    100,903.80x = 151,282.80 × 56,544.15
  4. Step 4: Simplify right side
    100,903.80x = 8,554,157,335.62
  5. Step 5: Solve for x
    x = 8,554,157,335.62/100,903.80
  6. Step 6: Final answer
    x = 84,775.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.