Home / 133,088.20-183,705.78-79,390.60

Finding the Fourth Proportional to 133,088.20, 183,705.78 and 79,390.60

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Solution

The fourth proportional to 133,088.20, 183,705.78 and 79,390.60 is: 109,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,088.20 : 183,705.78 = 79,390.60 : x
  2. Step 2: Convert to fraction form
    133,088.20/183,705.78 = 79,390.60/x
  3. Step 3: Cross multiply
    133,088.20x = 183,705.78 × 79,390.60
  4. Step 4: Simplify right side
    133,088.20x = 14,584,512,097.67
  5. Step 5: Solve for x
    x = 14,584,512,097.67/133,088.20
  6. Step 6: Final answer
    x = 109,585.31

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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.