Home / 107,266.19-147,965.81-66,909.87

Finding the Fourth Proportional to 107,266.19, 147,965.81 and 66,909.87

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Solution

The fourth proportional to 107,266.19, 147,965.81 and 66,909.87 is: 92,297.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,266.19 : 147,965.81 = 66,909.87 : x
  2. Step 2: Convert to fraction form
    107,266.19/147,965.81 = 66,909.87/x
  3. Step 3: Cross multiply
    107,266.19x = 147,965.81 × 66,909.87
  4. Step 4: Simplify right side
    107,266.19x = 9,900,372,777.00
  5. Step 5: Solve for x
    x = 9,900,372,777.00/107,266.19
  6. Step 6: Final answer
    x = 92,297.24

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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.