Home / 158,341.48-218,502.90-86,719.96

Finding the Fourth Proportional to 158,341.48, 218,502.90 and 86,719.96

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Solution

The fourth proportional to 158,341.48, 218,502.90 and 86,719.96 is: 119,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,341.48 : 218,502.90 = 86,719.96 : x
  2. Step 2: Convert to fraction form
    158,341.48/218,502.90 = 86,719.96/x
  3. Step 3: Cross multiply
    158,341.48x = 218,502.90 × 86,719.96
  4. Step 4: Simplify right side
    158,341.48x = 18,948,562,747.88
  5. Step 5: Solve for x
    x = 18,948,562,747.88/158,341.48
  6. Step 6: Final answer
    x = 119,668.98

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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.