Home / 142,918.20-197,227.06-79,256.00

Finding the Fourth Proportional to 142,918.20, 197,227.06 and 79,256.00

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Solution

The fourth proportional to 142,918.20, 197,227.06 and 79,256.00 is: 109,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,918.20 : 197,227.06 = 79,256.00 : x
  2. Step 2: Convert to fraction form
    142,918.20/197,227.06 = 79,256.00/x
  3. Step 3: Cross multiply
    142,918.20x = 197,227.06 × 79,256.00
  4. Step 4: Simplify right side
    142,918.20x = 15,631,428,162.29
  5. Step 5: Solve for x
    x = 15,631,428,162.29/142,918.20
  6. Step 6: Final answer
    x = 109,373.25

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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.