Home / 103,258.31-142,484.81-57,926.88

Finding the Fourth Proportional to 103,258.31, 142,484.81 and 57,926.88

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Solution

The fourth proportional to 103,258.31, 142,484.81 and 57,926.88 is: 79,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,258.31 : 142,484.81 = 57,926.88 : x
  2. Step 2: Convert to fraction form
    103,258.31/142,484.81 = 57,926.88/x
  3. Step 3: Cross multiply
    103,258.31x = 142,484.81 × 57,926.88
  4. Step 4: Simplify right side
    103,258.31x = 8,253,700,201.06
  5. Step 5: Solve for x
    x = 8,253,700,201.06/103,258.31
  6. Step 6: Final answer
    x = 79,932.56

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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.