Home / 239,661.45-330,762.07-137,686.70

Finding the Fourth Proportional to 239,661.45, 330,762.07 and 137,686.70

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Solution

The fourth proportional to 239,661.45, 330,762.07 and 137,686.70 is: 190,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,661.45 : 330,762.07 = 137,686.70 : x
  2. Step 2: Convert to fraction form
    239,661.45/330,762.07 = 137,686.70/x
  3. Step 3: Cross multiply
    239,661.45x = 330,762.07 × 137,686.70
  4. Step 4: Simplify right side
    239,661.45x = 45,541,538,902.48
  5. Step 5: Solve for x
    x = 45,541,538,902.48/239,661.45
  6. Step 6: Final answer
    x = 190,024.47

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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.