Home / 245,141.64-338,329.51-137,719.85

Finding the Fourth Proportional to 245,141.64, 338,329.51 and 137,719.85

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Solution

The fourth proportional to 245,141.64, 338,329.51 and 137,719.85 is: 190,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,141.64 : 338,329.51 = 137,719.85 : x
  2. Step 2: Convert to fraction form
    245,141.64/338,329.51 = 137,719.85/x
  3. Step 3: Cross multiply
    245,141.64x = 338,329.51 × 137,719.85
  4. Step 4: Simplify right side
    245,141.64x = 46,594,687,331.83
  5. Step 5: Solve for x
    x = 46,594,687,331.83/245,141.64
  6. Step 6: Final answer
    x = 190,072.51

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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.