Home / 151,479.15-209,041.64-91,084.38

Finding the Fourth Proportional to 151,479.15, 209,041.64 and 91,084.38

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Solution

The fourth proportional to 151,479.15, 209,041.64 and 91,084.38 is: 125,696.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,479.15 : 209,041.64 = 91,084.38 : x
  2. Step 2: Convert to fraction form
    151,479.15/209,041.64 = 91,084.38/x
  3. Step 3: Cross multiply
    151,479.15x = 209,041.64 × 91,084.38
  4. Step 4: Simplify right side
    151,479.15x = 19,040,428,173.58
  5. Step 5: Solve for x
    x = 19,040,428,173.58/151,479.15
  6. Step 6: Final answer
    x = 125,696.69

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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.