Home / 158,308.96-218,466.36-86,693.36

Finding the Fourth Proportional to 158,308.96, 218,466.36 and 86,693.36

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Solution

The fourth proportional to 158,308.96, 218,466.36 and 86,693.36 is: 119,636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,308.96 : 218,466.36 = 86,693.36 : x
  2. Step 2: Convert to fraction form
    158,308.96/218,466.36 = 86,693.36/x
  3. Step 3: Cross multiply
    158,308.96x = 218,466.36 × 86,693.36
  4. Step 4: Simplify right side
    158,308.96x = 18,939,582,795.37
  5. Step 5: Solve for x
    x = 18,939,582,795.37/158,308.96
  6. Step 6: Final answer
    x = 119,636.83

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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.