Home / 140,612.34-210,934.95-49,399.75

Finding the Fourth Proportional to 140,612.34, 210,934.95 and 49,399.75

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Solution

The fourth proportional to 140,612.34, 210,934.95 and 49,399.75 is: 74,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,612.34 : 210,934.95 = 49,399.75 : x
  2. Step 2: Convert to fraction form
    140,612.34/210,934.95 = 49,399.75/x
  3. Step 3: Cross multiply
    140,612.34x = 210,934.95 × 49,399.75
  4. Step 4: Simplify right side
    140,612.34x = 10,420,133,796.26
  5. Step 5: Solve for x
    x = 10,420,133,796.26/140,612.34
  6. Step 6: Final answer
    x = 74,105.40

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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.