Home / 214,929.40-322,458.54-86,779.72

Finding the Fourth Proportional to 214,929.40, 322,458.54 and 86,779.72

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Solution

The fourth proportional to 214,929.40, 322,458.54 and 86,779.72 is: 130,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,929.40 : 322,458.54 = 86,779.72 : x
  2. Step 2: Convert to fraction form
    214,929.40/322,458.54 = 86,779.72/x
  3. Step 3: Cross multiply
    214,929.40x = 322,458.54 × 86,779.72
  4. Step 4: Simplify right side
    214,929.40x = 27,982,861,812.81
  5. Step 5: Solve for x
    x = 27,982,861,812.81/214,929.40
  6. Step 6: Final answer
    x = 130,195.60

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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.