Home / 107,816.40-161,724.60-99,943.20

Finding the Fourth Proportional to 107,816.40, 161,724.60 and 99,943.20

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Solution

The fourth proportional to 107,816.40, 161,724.60 and 99,943.20 is: 149,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,816.40 : 161,724.60 = 99,943.20 : x
  2. Step 2: Convert to fraction form
    107,816.40/161,724.60 = 99,943.20/x
  3. Step 3: Cross multiply
    107,816.40x = 161,724.60 × 99,943.20
  4. Step 4: Simplify right side
    107,816.40x = 16,163,274,042.72
  5. Step 5: Solve for x
    x = 16,163,274,042.72/107,816.40
  6. Step 6: Final answer
    x = 149,914.80

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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.