Home / 239,686.50-330,777.90-137,744.76

Finding the Fourth Proportional to 239,686.50, 330,777.90 and 137,744.76

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Solution

The fourth proportional to 239,686.50, 330,777.90 and 137,744.76 is: 190,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,686.50 : 330,777.90 = 137,744.76 : x
  2. Step 2: Convert to fraction form
    239,686.50/330,777.90 = 137,744.76/x
  3. Step 3: Cross multiply
    239,686.50x = 330,777.90 × 137,744.76
  4. Step 4: Simplify right side
    239,686.50x = 45,562,922,448.80
  5. Step 5: Solve for x
    x = 45,562,922,448.80/239,686.50
  6. Step 6: Final answer
    x = 190,093.82

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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.