Home / 151,948.90-209,696.81-91,538.49

Finding the Fourth Proportional to 151,948.90, 209,696.81 and 91,538.49

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Solution

The fourth proportional to 151,948.90, 209,696.81 and 91,538.49 is: 126,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,948.90 : 209,696.81 = 91,538.49 : x
  2. Step 2: Convert to fraction form
    151,948.90/209,696.81 = 91,538.49/x
  3. Step 3: Cross multiply
    151,948.90x = 209,696.81 × 91,538.49
  4. Step 4: Simplify right side
    151,948.90x = 19,195,329,345.22
  5. Step 5: Solve for x
    x = 19,195,329,345.22/151,948.90
  6. Step 6: Final answer
    x = 126,327.53

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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.