Home / 131,650.84-181,604.28-80,688.24

Finding the Fourth Proportional to 131,650.84, 181,604.28 and 80,688.24

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Solution

The fourth proportional to 131,650.84, 181,604.28 and 80,688.24 is: 111,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,650.84 : 181,604.28 = 80,688.24 : x
  2. Step 2: Convert to fraction form
    131,650.84/181,604.28 = 80,688.24/x
  3. Step 3: Cross multiply
    131,650.84x = 181,604.28 × 80,688.24
  4. Step 4: Simplify right side
    131,650.84x = 14,653,329,729.67
  5. Step 5: Solve for x
    x = 14,653,329,729.67/131,650.84
  6. Step 6: Final answer
    x = 111,304.49

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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.