Home / 131,151.06-181,002.48-80,193.65

Finding the Fourth Proportional to 131,151.06, 181,002.48 and 80,193.65

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Solution

The fourth proportional to 131,151.06, 181,002.48 and 80,193.65 is: 110,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,151.06 : 181,002.48 = 80,193.65 : x
  2. Step 2: Convert to fraction form
    131,151.06/181,002.48 = 80,193.65/x
  3. Step 3: Cross multiply
    131,151.06x = 181,002.48 × 80,193.65
  4. Step 4: Simplify right side
    131,151.06x = 14,515,249,808.04
  5. Step 5: Solve for x
    x = 14,515,249,808.04/131,151.06
  6. Step 6: Final answer
    x = 110,675.81

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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.