Home / 142,984.48-214,279.44-107,885.20

Finding the Fourth Proportional to 142,984.48, 214,279.44 and 107,885.20

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Solution

The fourth proportional to 142,984.48, 214,279.44 and 107,885.20 is: 161,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,984.48 : 214,279.44 = 107,885.20 : x
  2. Step 2: Convert to fraction form
    142,984.48/214,279.44 = 107,885.20/x
  3. Step 3: Cross multiply
    142,984.48x = 214,279.44 × 107,885.20
  4. Step 4: Simplify right side
    142,984.48x = 23,117,580,240.29
  5. Step 5: Solve for x
    x = 23,117,580,240.29/142,984.48
  6. Step 6: Final answer
    x = 161,678.95

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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.