Home / 131,050.65-196,280.55-91,783.02

Finding the Fourth Proportional to 131,050.65, 196,280.55 and 91,783.02

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Solution

The fourth proportional to 131,050.65, 196,280.55 and 91,783.02 is: 137,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,050.65 : 196,280.55 = 91,783.02 : x
  2. Step 2: Convert to fraction form
    131,050.65/196,280.55 = 91,783.02/x
  3. Step 3: Cross multiply
    131,050.65x = 196,280.55 × 91,783.02
  4. Step 4: Simplify right side
    131,050.65x = 18,015,221,646.26
  5. Step 5: Solve for x
    x = 18,015,221,646.26/131,050.65
  6. Step 6: Final answer
    x = 137,467.63

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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.