Home / 131,698.72-181,742.92-71,268.04

Finding the Fourth Proportional to 131,698.72, 181,742.92 and 71,268.04

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Solution

The fourth proportional to 131,698.72, 181,742.92 and 71,268.04 is: 98,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,698.72 : 181,742.92 = 71,268.04 : x
  2. Step 2: Convert to fraction form
    131,698.72/181,742.92 = 71,268.04/x
  3. Step 3: Cross multiply
    131,698.72x = 181,742.92 × 71,268.04
  4. Step 4: Simplify right side
    131,698.72x = 12,952,461,692.28
  5. Step 5: Solve for x
    x = 12,952,461,692.28/131,698.72
  6. Step 6: Final answer
    x = 98,349.18

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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.