Home / 113,035.41-155,956.91-72,772.47

Finding the Fourth Proportional to 113,035.41, 155,956.91 and 72,772.47

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Solution

The fourth proportional to 113,035.41, 155,956.91 and 72,772.47 is: 100,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,035.41 : 155,956.91 = 72,772.47 : x
  2. Step 2: Convert to fraction form
    113,035.41/155,956.91 = 72,772.47/x
  3. Step 3: Cross multiply
    113,035.41x = 155,956.91 × 72,772.47
  4. Step 4: Simplify right side
    113,035.41x = 11,349,369,190.41
  5. Step 5: Solve for x
    x = 11,349,369,190.41/113,035.41
  6. Step 6: Final answer
    x = 100,405.43

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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.