Home / 137,020.32-205,390.34-69,427.14

Finding the Fourth Proportional to 137,020.32, 205,390.34 and 69,427.14

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Solution

The fourth proportional to 137,020.32, 205,390.34 and 69,427.14 is: 104,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,020.32 : 205,390.34 = 69,427.14 : x
  2. Step 2: Convert to fraction form
    137,020.32/205,390.34 = 69,427.14/x
  3. Step 3: Cross multiply
    137,020.32x = 205,390.34 × 69,427.14
  4. Step 4: Simplify right side
    137,020.32x = 14,259,663,889.83
  5. Step 5: Solve for x
    x = 14,259,663,889.83/137,020.32
  6. Step 6: Final answer
    x = 104,069.70

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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.