Home / 105,738.22-158,557.11-61,378.57

Finding the Fourth Proportional to 105,738.22, 158,557.11 and 61,378.57

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Solution

The fourth proportional to 105,738.22, 158,557.11 and 61,378.57 is: 92,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,738.22 : 158,557.11 = 61,378.57 : x
  2. Step 2: Convert to fraction form
    105,738.22/158,557.11 = 61,378.57/x
  3. Step 3: Cross multiply
    105,738.22x = 158,557.11 × 61,378.57
  4. Step 4: Simplify right side
    105,738.22x = 9,732,008,675.13
  5. Step 5: Solve for x
    x = 9,732,008,675.13/105,738.22
  6. Step 6: Final answer
    x = 92,038.70

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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.