Home / 107,399.64-148,290.30-99,437.88

Finding the Fourth Proportional to 107,399.64, 148,290.30 and 99,437.88

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Solution

The fourth proportional to 107,399.64, 148,290.30 and 99,437.88 is: 137,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,399.64 : 148,290.30 = 99,437.88 : x
  2. Step 2: Convert to fraction form
    107,399.64/148,290.30 = 99,437.88/x
  3. Step 3: Cross multiply
    107,399.64x = 148,290.30 × 99,437.88
  4. Step 4: Simplify right side
    107,399.64x = 14,745,673,056.56
  5. Step 5: Solve for x
    x = 14,745,673,056.56/107,399.64
  6. Step 6: Final answer
    x = 137,297.23

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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.