Home / 112,680.37-155,604.26-72,463.96

Finding the Fourth Proportional to 112,680.37, 155,604.26 and 72,463.96

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Solution

The fourth proportional to 112,680.37, 155,604.26 and 72,463.96 is: 100,068.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,680.37 : 155,604.26 = 72,463.96 : x
  2. Step 2: Convert to fraction form
    112,680.37/155,604.26 = 72,463.96/x
  3. Step 3: Cross multiply
    112,680.37x = 155,604.26 × 72,463.96
  4. Step 4: Simplify right side
    112,680.37x = 11,275,700,872.47
  5. Step 5: Solve for x
    x = 11,275,700,872.47/112,680.37
  6. Step 6: Final answer
    x = 100,068.01

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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.