Home / 133,108.28-183,696.87-72,684.55

Finding the Fourth Proportional to 133,108.28, 183,696.87 and 72,684.55

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Solution

The fourth proportional to 133,108.28, 183,696.87 and 72,684.55 is: 100,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,108.28 : 183,696.87 = 72,684.55 : x
  2. Step 2: Convert to fraction form
    133,108.28/183,696.87 = 72,684.55/x
  3. Step 3: Cross multiply
    133,108.28x = 183,696.87 × 72,684.55
  4. Step 4: Simplify right side
    133,108.28x = 13,351,924,332.36
  5. Step 5: Solve for x
    x = 13,351,924,332.36/133,108.28
  6. Step 6: Final answer
    x = 100,308.74

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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.