Home / 106,011.20-158,123.72-98,662.88

Finding the Fourth Proportional to 106,011.20, 158,123.72 and 98,662.88

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Solution

The fourth proportional to 106,011.20, 158,123.72 and 98,662.88 is: 147,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,011.20 : 158,123.72 = 98,662.88 : x
  2. Step 2: Convert to fraction form
    106,011.20/158,123.72 = 98,662.88/x
  3. Step 3: Cross multiply
    106,011.20x = 158,123.72 × 98,662.88
  4. Step 4: Simplify right side
    106,011.20x = 15,600,941,611.51
  5. Step 5: Solve for x
    x = 15,600,941,611.51/106,011.20
  6. Step 6: Final answer
    x = 147,163.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.