Home / 124,591.90-186,665.10-75,816.40

Finding the Fourth Proportional to 124,591.90, 186,665.10 and 75,816.40

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Solution

The fourth proportional to 124,591.90, 186,665.10 and 75,816.40 is: 113,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,591.90 : 186,665.10 = 75,816.40 : x
  2. Step 2: Convert to fraction form
    124,591.90/186,665.10 = 75,816.40/x
  3. Step 3: Cross multiply
    124,591.90x = 186,665.10 × 75,816.40
  4. Step 4: Simplify right side
    124,591.90x = 14,152,275,887.64
  5. Step 5: Solve for x
    x = 14,152,275,887.64/124,591.90
  6. Step 6: Final answer
    x = 113,589.05

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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.