Home / 137,431.51-206,171.87-70,853.76

Finding the Fourth Proportional to 137,431.51, 206,171.87 and 70,853.76

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Solution

The fourth proportional to 137,431.51, 206,171.87 and 70,853.76 is: 106,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,431.51 : 206,171.87 = 70,853.76 : x
  2. Step 2: Convert to fraction form
    137,431.51/206,171.87 = 70,853.76/x
  3. Step 3: Cross multiply
    137,431.51x = 206,171.87 × 70,853.76
  4. Step 4: Simplify right side
    137,431.51x = 14,608,051,841.46
  5. Step 5: Solve for x
    x = 14,608,051,841.46/137,431.51
  6. Step 6: Final answer
    x = 106,293.32

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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.