Home / 137,834.87-190,211.40-77,408.06

Finding the Fourth Proportional to 137,834.87, 190,211.40 and 77,408.06

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Solution

The fourth proportional to 137,834.87, 190,211.40 and 77,408.06 is: 106,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,834.87 : 190,211.40 = 77,408.06 : x
  2. Step 2: Convert to fraction form
    137,834.87/190,211.40 = 77,408.06/x
  3. Step 3: Cross multiply
    137,834.87x = 190,211.40 × 77,408.06
  4. Step 4: Simplify right side
    137,834.87x = 14,723,896,229.69
  5. Step 5: Solve for x
    x = 14,723,896,229.69/137,834.87
  6. Step 6: Final answer
    x = 106,822.72

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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.