Home / 142,012.44-212,906.40-70,898.58

Finding the Fourth Proportional to 142,012.44, 212,906.40 and 70,898.58

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Solution

The fourth proportional to 142,012.44, 212,906.40 and 70,898.58 is: 106,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,012.44 : 212,906.40 = 70,898.58 : x
  2. Step 2: Convert to fraction form
    142,012.44/212,906.40 = 70,898.58/x
  3. Step 3: Cross multiply
    142,012.44x = 212,906.40 × 70,898.58
  4. Step 4: Simplify right side
    142,012.44x = 15,094,761,432.91
  5. Step 5: Solve for x
    x = 15,094,761,432.91/142,012.44
  6. Step 6: Final answer
    x = 106,291.83

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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.