Home / 158,866.30-219,237.01-87,247.81

Finding the Fourth Proportional to 158,866.30, 219,237.01 and 87,247.81

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Solution

The fourth proportional to 158,866.30, 219,237.01 and 87,247.81 is: 120,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,866.30 : 219,237.01 = 87,247.81 : x
  2. Step 2: Convert to fraction form
    158,866.30/219,237.01 = 87,247.81/x
  3. Step 3: Cross multiply
    158,866.30x = 219,237.01 × 87,247.81
  4. Step 4: Simplify right side
    158,866.30x = 19,127,948,993.45
  5. Step 5: Solve for x
    x = 19,127,948,993.45/158,866.30
  6. Step 6: Final answer
    x = 120,402.81

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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.