Home / 103,956.23-155,182.34-91,344.94

Finding the Fourth Proportional to 103,956.23, 155,182.34 and 91,344.94

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Solution

The fourth proportional to 103,956.23, 155,182.34 and 91,344.94 is: 136,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,956.23 : 155,182.34 = 91,344.94 : x
  2. Step 2: Convert to fraction form
    103,956.23/155,182.34 = 91,344.94/x
  3. Step 3: Cross multiply
    103,956.23x = 155,182.34 × 91,344.94
  4. Step 4: Simplify right side
    103,956.23x = 14,175,120,760.45
  5. Step 5: Solve for x
    x = 14,175,120,760.45/103,956.23
  6. Step 6: Final answer
    x = 136,356.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.