Home / 120,872.50-181,308.78-45,975.34

Finding the Fourth Proportional to 120,872.50, 181,308.78 and 45,975.34

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Solution

The fourth proportional to 120,872.50, 181,308.78 and 45,975.34 is: 68,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,872.50 : 181,308.78 = 45,975.34 : x
  2. Step 2: Convert to fraction form
    120,872.50/181,308.78 = 45,975.34/x
  3. Step 3: Cross multiply
    120,872.50x = 181,308.78 × 45,975.34
  4. Step 4: Simplify right side
    120,872.50x = 8,335,732,805.49
  5. Step 5: Solve for x
    x = 8,335,732,805.49/120,872.50
  6. Step 6: Final answer
    x = 68,963.02

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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.