Home / 120,903.96-166,836.06-111,987.48

Finding the Fourth Proportional to 120,903.96, 166,836.06 and 111,987.48

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Solution

The fourth proportional to 120,903.96, 166,836.06 and 111,987.48 is: 154,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,903.96 : 166,836.06 = 111,987.48 : x
  2. Step 2: Convert to fraction form
    120,903.96/166,836.06 = 111,987.48/x
  3. Step 3: Cross multiply
    120,903.96x = 166,836.06 × 111,987.48
  4. Step 4: Simplify right side
    120,903.96x = 18,683,549,932.53
  5. Step 5: Solve for x
    x = 18,683,549,932.53/120,903.96
  6. Step 6: Final answer
    x = 154,532.16

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1.5x scale

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.