Home / 136,329.74-188,139.24-74,244.38

Finding the Fourth Proportional to 136,329.74, 188,139.24 and 74,244.38

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Solution

The fourth proportional to 136,329.74, 188,139.24 and 74,244.38 is: 102,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,329.74 : 188,139.24 = 74,244.38 : x
  2. Step 2: Convert to fraction form
    136,329.74/188,139.24 = 74,244.38/x
  3. Step 3: Cross multiply
    136,329.74x = 188,139.24 × 74,244.38
  4. Step 4: Simplify right side
    136,329.74x = 13,968,281,227.47
  5. Step 5: Solve for x
    x = 13,968,281,227.47/136,329.74
  6. Step 6: Final answer
    x = 102,459.53

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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.