Home / 151,711.29-209,357.64-83,727.36

Finding the Fourth Proportional to 151,711.29, 209,357.64 and 83,727.36

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Solution

The fourth proportional to 151,711.29, 209,357.64 and 83,727.36 is: 115,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,711.29 : 209,357.64 = 83,727.36 : x
  2. Step 2: Convert to fraction form
    151,711.29/209,357.64 = 83,727.36/x
  3. Step 3: Cross multiply
    151,711.29x = 209,357.64 × 83,727.36
  4. Step 4: Simplify right side
    151,711.29x = 17,528,962,493.03
  5. Step 5: Solve for x
    x = 17,528,962,493.03/151,711.29
  6. Step 6: Final answer
    x = 115,541.58

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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.