Home / 142,044.10-212,920.35-82,849.30

Finding the Fourth Proportional to 142,044.10, 212,920.35 and 82,849.30

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Solution

The fourth proportional to 142,044.10, 212,920.35 and 82,849.30 is: 124,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,044.10 : 212,920.35 = 82,849.30 : x
  2. Step 2: Convert to fraction form
    142,044.10/212,920.35 = 82,849.30/x
  3. Step 3: Cross multiply
    142,044.10x = 212,920.35 × 82,849.30
  4. Step 4: Simplify right side
    142,044.10x = 17,640,301,953.26
  5. Step 5: Solve for x
    x = 17,640,301,953.26/142,044.10
  6. Step 6: Final answer
    x = 124,188.91

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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.