Home / 212,502.13-318,676.63-70,321.16

Finding the Fourth Proportional to 212,502.13, 318,676.63 and 70,321.16

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Solution

The fourth proportional to 212,502.13, 318,676.63 and 70,321.16 is: 105,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,502.13 : 318,676.63 = 70,321.16 : x
  2. Step 2: Convert to fraction form
    212,502.13/318,676.63 = 70,321.16/x
  3. Step 3: Cross multiply
    212,502.13x = 318,676.63 × 70,321.16
  4. Step 4: Simplify right side
    212,502.13x = 22,409,711,039.23
  5. Step 5: Solve for x
    x = 22,409,711,039.23/212,502.13
  6. Step 6: Final answer
    x = 105,456.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.