Home / 158,905.74-219,291.23-87,287.37

Finding the Fourth Proportional to 158,905.74, 219,291.23 and 87,287.37

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Solution

The fourth proportional to 158,905.74, 219,291.23 and 87,287.37 is: 120,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,905.74 : 219,291.23 = 87,287.37 : x
  2. Step 2: Convert to fraction form
    158,905.74/219,291.23 = 87,287.37/x
  3. Step 3: Cross multiply
    158,905.74x = 219,291.23 × 87,287.37
  4. Step 4: Simplify right side
    158,905.74x = 19,141,354,126.64
  5. Step 5: Solve for x
    x = 19,141,354,126.64/158,905.74
  6. Step 6: Final answer
    x = 120,457.28

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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.