Home / 124,311.20-186,539.70-45,433.40

Finding the Fourth Proportional to 124,311.20, 186,539.70 and 45,433.40

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Solution

The fourth proportional to 124,311.20, 186,539.70 and 45,433.40 is: 68,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,311.20 : 186,539.70 = 45,433.40 : x
  2. Step 2: Convert to fraction form
    124,311.20/186,539.70 = 45,433.40/x
  3. Step 3: Cross multiply
    124,311.20x = 186,539.70 × 45,433.40
  4. Step 4: Simplify right side
    124,311.20x = 8,475,132,805.98
  5. Step 5: Solve for x
    x = 8,475,132,805.98/124,311.20
  6. Step 6: Final answer
    x = 68,176.74

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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.