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Finding the Fourth Proportional to 145,877.70, 218,816.55 and 82,892.10

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Solution

The fourth proportional to 145,877.70, 218,816.55 and 82,892.10 is: 124,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,877.70 : 218,816.55 = 82,892.10 : x
  2. Step 2: Convert to fraction form
    145,877.70/218,816.55 = 82,892.10/x
  3. Step 3: Cross multiply
    145,877.70x = 218,816.55 × 82,892.10
  4. Step 4: Simplify right side
    145,877.70x = 18,138,163,344.26
  5. Step 5: Solve for x
    x = 18,138,163,344.26/145,877.70
  6. Step 6: Final answer
    x = 124,338.15

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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.