Home / 131,358.60-181,241.49-80,352.69

Finding the Fourth Proportional to 131,358.60, 181,241.49 and 80,352.69

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Solution

The fourth proportional to 131,358.60, 181,241.49 and 80,352.69 is: 110,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,358.60 : 181,241.49 = 80,352.69 : x
  2. Step 2: Convert to fraction form
    131,358.60/181,241.49 = 80,352.69/x
  3. Step 3: Cross multiply
    131,358.60x = 181,241.49 × 80,352.69
  4. Step 4: Simplify right side
    131,358.60x = 14,563,241,261.11
  5. Step 5: Solve for x
    x = 14,563,241,261.11/131,358.60
  6. Step 6: Final answer
    x = 110,866.29

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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.