Home / 143,127.59-197,508.36-79,461.29

Finding the Fourth Proportional to 143,127.59, 197,508.36 and 79,461.29

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Solution

The fourth proportional to 143,127.59, 197,508.36 and 79,461.29 is: 109,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,127.59 : 197,508.36 = 79,461.29 : x
  2. Step 2: Convert to fraction form
    143,127.59/197,508.36 = 79,461.29/x
  3. Step 3: Cross multiply
    143,127.59x = 197,508.36 × 79,461.29
  4. Step 4: Simplify right side
    143,127.59x = 15,694,268,083.84
  5. Step 5: Solve for x
    x = 15,694,268,083.84/143,127.59
  6. Step 6: Final answer
    x = 109,652.29

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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.