Home / 133,110.75-183,696.60-72,685.20

Finding the Fourth Proportional to 133,110.75, 183,696.60 and 72,685.20

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Solution

The fourth proportional to 133,110.75, 183,696.60 and 72,685.20 is: 100,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,110.75 : 183,696.60 = 72,685.20 : x
  2. Step 2: Convert to fraction form
    133,110.75/183,696.60 = 72,685.20/x
  3. Step 3: Cross multiply
    133,110.75x = 183,696.60 × 72,685.20
  4. Step 4: Simplify right side
    133,110.75x = 13,352,024,110.32
  5. Step 5: Solve for x
    x = 13,352,024,110.32/133,110.75
  6. Step 6: Final answer
    x = 100,307.63

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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.