Home / 142,447.19-196,384.75-91,371.25

Finding the Fourth Proportional to 142,447.19, 196,384.75 and 91,371.25

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Solution

The fourth proportional to 142,447.19, 196,384.75 and 91,371.25 is: 125,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,447.19 : 196,384.75 = 91,371.25 : x
  2. Step 2: Convert to fraction form
    142,447.19/196,384.75 = 91,371.25/x
  3. Step 3: Cross multiply
    142,447.19x = 196,384.75 × 91,371.25
  4. Step 4: Simplify right side
    142,447.19x = 17,943,920,606.52
  5. Step 5: Solve for x
    x = 17,943,920,606.52/142,447.19
  6. Step 6: Final answer
    x = 125,968.94

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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.