Home / 137,438.16-206,203.37-74,263.93

Finding the Fourth Proportional to 137,438.16, 206,203.37 and 74,263.93

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Solution

The fourth proportional to 137,438.16, 206,203.37 and 74,263.93 is: 111,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,438.16 : 206,203.37 = 74,263.93 : x
  2. Step 2: Convert to fraction form
    137,438.16/206,203.37 = 74,263.93/x
  3. Step 3: Cross multiply
    137,438.16x = 206,203.37 × 74,263.93
  4. Step 4: Simplify right side
    137,438.16x = 15,313,471,748.62
  5. Step 5: Solve for x
    x = 15,313,471,748.62/137,438.16
  6. Step 6: Final answer
    x = 111,420.82

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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.