Home / 137,246.14-189,377.08-86,222.75

Finding the Fourth Proportional to 137,246.14, 189,377.08 and 86,222.75

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Solution

The fourth proportional to 137,246.14, 189,377.08 and 86,222.75 is: 118,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,246.14 : 189,377.08 = 86,222.75 : x
  2. Step 2: Convert to fraction form
    137,246.14/189,377.08 = 86,222.75/x
  3. Step 3: Cross multiply
    137,246.14x = 189,377.08 × 86,222.75
  4. Step 4: Simplify right side
    137,246.14x = 16,328,612,666.90
  5. Step 5: Solve for x
    x = 16,328,612,666.90/137,246.14
  6. Step 6: Final answer
    x = 118,973.20

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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.