Home / 131,783.45-181,860.39-71,352.84

Finding the Fourth Proportional to 131,783.45, 181,860.39 and 71,352.84

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Solution

The fourth proportional to 131,783.45, 181,860.39 and 71,352.84 is: 98,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,783.45 : 181,860.39 = 71,352.84 : x
  2. Step 2: Convert to fraction form
    131,783.45/181,860.39 = 71,352.84/x
  3. Step 3: Cross multiply
    131,783.45x = 181,860.39 × 71,352.84
  4. Step 4: Simplify right side
    131,783.45x = 12,976,255,310.01
  5. Step 5: Solve for x
    x = 12,976,255,310.01/131,783.45
  6. Step 6: Final answer
    x = 98,466.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.