Home / 158,935.29-219,268.53-90,915.96

Finding the Fourth Proportional to 158,935.29, 219,268.53 and 90,915.96

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Solution

The fourth proportional to 158,935.29, 219,268.53 and 90,915.96 is: 125,428.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,935.29 : 219,268.53 = 90,915.96 : x
  2. Step 2: Convert to fraction form
    158,935.29/219,268.53 = 90,915.96/x
  3. Step 3: Cross multiply
    158,935.29x = 219,268.53 × 90,915.96
  4. Step 4: Simplify right side
    158,935.29x = 19,935,008,902.74
  5. Step 5: Solve for x
    x = 19,935,008,902.74/158,935.29
  6. Step 6: Final answer
    x = 125,428.46

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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.