Home / 142,008.72-212,810.10-104,272.75

Finding the Fourth Proportional to 142,008.72, 212,810.10 and 104,272.75

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Solution

The fourth proportional to 142,008.72, 212,810.10 and 104,272.75 is: 156,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,008.72 : 212,810.10 = 104,272.75 : x
  2. Step 2: Convert to fraction form
    142,008.72/212,810.10 = 104,272.75/x
  3. Step 3: Cross multiply
    142,008.72x = 212,810.10 × 104,272.75
  4. Step 4: Simplify right side
    142,008.72x = 22,190,294,354.78
  5. Step 5: Solve for x
    x = 22,190,294,354.78/142,008.72
  6. Step 6: Final answer
    x = 156,260.09

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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.