Home / 124,621.90-186,710.10-75,846.40

Finding the Fourth Proportional to 124,621.90, 186,710.10 and 75,846.40

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Solution

The fourth proportional to 124,621.90, 186,710.10 and 75,846.40 is: 113,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,621.90 : 186,710.10 = 75,846.40 : x
  2. Step 2: Convert to fraction form
    124,621.90/186,710.10 = 75,846.40/x
  3. Step 3: Cross multiply
    124,621.90x = 186,710.10 × 75,846.40
  4. Step 4: Simplify right side
    124,621.90x = 14,161,288,928.64
  5. Step 5: Solve for x
    x = 14,161,288,928.64/124,621.90
  6. Step 6: Final answer
    x = 113,634.03

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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.