Home / 133,242.50-183,877.06-72,815.69

Finding the Fourth Proportional to 133,242.50, 183,877.06 and 72,815.69

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Solution

The fourth proportional to 133,242.50, 183,877.06 and 72,815.69 is: 100,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,242.50 : 183,877.06 = 72,815.69 : x
  2. Step 2: Convert to fraction form
    133,242.50/183,877.06 = 72,815.69/x
  3. Step 3: Cross multiply
    133,242.50x = 183,877.06 × 72,815.69
  4. Step 4: Simplify right side
    133,242.50x = 13,389,135,276.72
  5. Step 5: Solve for x
    x = 13,389,135,276.72/133,242.50
  6. Step 6: Final answer
    x = 100,486.97

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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.