Home / 112,871.28-155,730.84-88,923.62

Finding the Fourth Proportional to 112,871.28, 155,730.84 and 88,923.62

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Solution

The fourth proportional to 112,871.28, 155,730.84 and 88,923.62 is: 122,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,871.28 : 155,730.84 = 88,923.62 : x
  2. Step 2: Convert to fraction form
    112,871.28/155,730.84 = 88,923.62/x
  3. Step 3: Cross multiply
    112,871.28x = 155,730.84 × 88,923.62
  4. Step 4: Simplify right side
    112,871.28x = 13,848,150,038.44
  5. Step 5: Solve for x
    x = 13,848,150,038.44/112,871.28
  6. Step 6: Final answer
    x = 122,689.76

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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.