Home / 112,079.40-168,119.10-111,301.80

Finding the Fourth Proportional to 112,079.40, 168,119.10 and 111,301.80

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Solution

The fourth proportional to 112,079.40, 168,119.10 and 111,301.80 is: 166,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,079.40 : 168,119.10 = 111,301.80 : x
  2. Step 2: Convert to fraction form
    112,079.40/168,119.10 = 111,301.80/x
  3. Step 3: Cross multiply
    112,079.40x = 168,119.10 × 111,301.80
  4. Step 4: Simplify right side
    112,079.40x = 18,711,958,444.38
  5. Step 5: Solve for x
    x = 18,711,958,444.38/112,079.40
  6. Step 6: Final answer
    x = 166,952.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.