Home / 143,058.49-197,407.19-85,696.81

Finding the Fourth Proportional to 143,058.49, 197,407.19 and 85,696.81

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Solution

The fourth proportional to 143,058.49, 197,407.19 and 85,696.81 is: 118,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,058.49 : 197,407.19 = 85,696.81 : x
  2. Step 2: Convert to fraction form
    143,058.49/197,407.19 = 85,696.81/x
  3. Step 3: Cross multiply
    143,058.49x = 197,407.19 × 85,696.81
  4. Step 4: Simplify right side
    143,058.49x = 16,917,166,174.79
  5. Step 5: Solve for x
    x = 16,917,166,174.79/143,058.49
  6. Step 6: Final answer
    x = 118,253.50

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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.