Home / 149,658.06-206,521.70-81,673.32

Finding the Fourth Proportional to 149,658.06, 206,521.70 and 81,673.32

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Solution

The fourth proportional to 149,658.06, 206,521.70 and 81,673.32 is: 112,705.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,658.06 : 206,521.70 = 81,673.32 : x
  2. Step 2: Convert to fraction form
    149,658.06/206,521.70 = 81,673.32/x
  3. Step 3: Cross multiply
    149,658.06x = 206,521.70 × 81,673.32
  4. Step 4: Simplify right side
    149,658.06x = 16,867,312,891.04
  5. Step 5: Solve for x
    x = 16,867,312,891.04/149,658.06
  6. Step 6: Final answer
    x = 112,705.68

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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.