Home / 137,427.64-189,657.14-79,262.74

Finding the Fourth Proportional to 137,427.64, 189,657.14 and 79,262.74

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Solution

The fourth proportional to 137,427.64, 189,657.14 and 79,262.74 is: 109,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,427.64 : 189,657.14 = 79,262.74 : x
  2. Step 2: Convert to fraction form
    137,427.64/189,657.14 = 79,262.74/x
  3. Step 3: Cross multiply
    137,427.64x = 189,657.14 × 79,262.74
  4. Step 4: Simplify right side
    137,427.64x = 15,032,745,367.80
  5. Step 5: Solve for x
    x = 15,032,745,367.80/137,427.64
  6. Step 6: Final answer
    x = 109,386.62

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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.