Home / 102,054.42-140,942.70-90,922.62

Finding the Fourth Proportional to 102,054.42, 140,942.70 and 90,922.62

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Solution

The fourth proportional to 102,054.42, 140,942.70 and 90,922.62 is: 125,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,054.42 : 140,942.70 = 90,922.62 : x
  2. Step 2: Convert to fraction form
    102,054.42/140,942.70 = 90,922.62/x
  3. Step 3: Cross multiply
    102,054.42x = 140,942.70 × 90,922.62
  4. Step 4: Simplify right side
    102,054.42x = 12,814,879,553.87
  5. Step 5: Solve for x
    x = 12,814,879,553.87/102,054.42
  6. Step 6: Final answer
    x = 125,569.08

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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.