Home / 131,116.82-180,767.02-85,716.76

Finding the Fourth Proportional to 131,116.82, 180,767.02 and 85,716.76

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Solution

The fourth proportional to 131,116.82, 180,767.02 and 85,716.76 is: 118,175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,116.82 : 180,767.02 = 85,716.76 : x
  2. Step 2: Convert to fraction form
    131,116.82/180,767.02 = 85,716.76/x
  3. Step 3: Cross multiply
    131,116.82x = 180,767.02 × 85,716.76
  4. Step 4: Simplify right side
    131,116.82x = 15,494,762,603.05
  5. Step 5: Solve for x
    x = 15,494,762,603.05/131,116.82
  6. Step 6: Final answer
    x = 118,175.24

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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.