Home / 112,117.40-167,981.70-72,654.20

Finding the Fourth Proportional to 112,117.40, 167,981.70 and 72,654.20

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Solution

The fourth proportional to 112,117.40, 167,981.70 and 72,654.20 is: 108,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,117.40 : 167,981.70 = 72,654.20 : x
  2. Step 2: Convert to fraction form
    112,117.40/167,981.70 = 72,654.20/x
  3. Step 3: Cross multiply
    112,117.40x = 167,981.70 × 72,654.20
  4. Step 4: Simplify right side
    112,117.40x = 12,204,576,028.14
  5. Step 5: Solve for x
    x = 12,204,576,028.14/112,117.40
  6. Step 6: Final answer
    x = 108,855.33

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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.