Home / 158,743.19-219,058.57-87,123.35

Finding the Fourth Proportional to 158,743.19, 219,058.57 and 87,123.35

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Solution

The fourth proportional to 158,743.19, 219,058.57 and 87,123.35 is: 120,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,743.19 : 219,058.57 = 87,123.35 : x
  2. Step 2: Convert to fraction form
    158,743.19/219,058.57 = 87,123.35/x
  3. Step 3: Cross multiply
    158,743.19x = 219,058.57 × 87,123.35
  4. Step 4: Simplify right side
    158,743.19x = 19,085,116,464.61
  5. Step 5: Solve for x
    x = 19,085,116,464.61/158,743.19
  6. Step 6: Final answer
    x = 120,226.36

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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.