Home / 140,645.15-210,923.68-40,812.24

Finding the Fourth Proportional to 140,645.15, 210,923.68 and 40,812.24

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Solution

The fourth proportional to 140,645.15, 210,923.68 and 40,812.24 is: 61,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,645.15 : 210,923.68 = 40,812.24 : x
  2. Step 2: Convert to fraction form
    140,645.15/210,923.68 = 40,812.24/x
  3. Step 3: Cross multiply
    140,645.15x = 210,923.68 × 40,812.24
  4. Step 4: Simplify right side
    140,645.15x = 8,608,267,849.84
  5. Step 5: Solve for x
    x = 8,608,267,849.84/140,645.15
  6. Step 6: Final answer
    x = 61,205.58

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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.