Home / 125,014.49-187,531.30-53,938.81

Finding the Fourth Proportional to 125,014.49, 187,531.30 and 53,938.81

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Solution

The fourth proportional to 125,014.49, 187,531.30 and 53,938.81 is: 80,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,014.49 : 187,531.30 = 53,938.81 : x
  2. Step 2: Convert to fraction form
    125,014.49/187,531.30 = 53,938.81/x
  3. Step 3: Cross multiply
    125,014.49x = 187,531.30 × 53,938.81
  4. Step 4: Simplify right side
    125,014.49x = 10,115,215,461.59
  5. Step 5: Solve for x
    x = 10,115,215,461.59/125,014.49
  6. Step 6: Final answer
    x = 80,912.35

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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.