Home / 124,428.70-186,643.05-84,511.90

Finding the Fourth Proportional to 124,428.70, 186,643.05 and 84,511.90

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Solution

The fourth proportional to 124,428.70, 186,643.05 and 84,511.90 is: 126,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428.70 : 186,643.05 = 84,511.90 : x
  2. Step 2: Convert to fraction form
    124,428.70/186,643.05 = 84,511.90/x
  3. Step 3: Cross multiply
    124,428.70x = 186,643.05 × 84,511.90
  4. Step 4: Simplify right side
    124,428.70x = 15,773,558,777.30
  5. Step 5: Solve for x
    x = 15,773,558,777.30/124,428.70
  6. Step 6: Final answer
    x = 126,767.85

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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.