Home / 112,064.40-167,902.20-72,601.20

Finding the Fourth Proportional to 112,064.40, 167,902.20 and 72,601.20

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Solution

The fourth proportional to 112,064.40, 167,902.20 and 72,601.20 is: 108,775.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,064.40 : 167,902.20 = 72,601.20 : x
  2. Step 2: Convert to fraction form
    112,064.40/167,902.20 = 72,601.20/x
  3. Step 3: Cross multiply
    112,064.40x = 167,902.20 × 72,601.20
  4. Step 4: Simplify right side
    112,064.40x = 12,189,901,202.64
  5. Step 5: Solve for x
    x = 12,189,901,202.64/112,064.40
  6. Step 6: Final answer
    x = 108,775.86

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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.