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Finding the Fourth Proportional to 133,154.58, 183,754.71 and 72,726.96

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Solution

The fourth proportional to 133,154.58, 183,754.71 and 72,726.96 is: 100,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,154.58 : 183,754.71 = 72,726.96 : x
  2. Step 2: Convert to fraction form
    133,154.58/183,754.71 = 72,726.96/x
  3. Step 3: Cross multiply
    133,154.58x = 183,754.71 × 72,726.96
  4. Step 4: Simplify right side
    133,154.58x = 13,363,921,443.98
  5. Step 5: Solve for x
    x = 13,363,921,443.98/133,154.58
  6. Step 6: Final answer
    x = 100,363.96

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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.