Home / 131,281.52-181,172.67-74,696.54

Finding the Fourth Proportional to 131,281.52, 181,172.67 and 74,696.54

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Solution

The fourth proportional to 131,281.52, 181,172.67 and 74,696.54 is: 103,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,281.52 : 181,172.67 = 74,696.54 : x
  2. Step 2: Convert to fraction form
    131,281.52/181,172.67 = 74,696.54/x
  3. Step 3: Cross multiply
    131,281.52x = 181,172.67 × 74,696.54
  4. Step 4: Simplify right side
    131,281.52x = 13,532,971,591.56
  5. Step 5: Solve for x
    x = 13,532,971,591.56/131,281.52
  6. Step 6: Final answer
    x = 103,083.60

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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.