Home / 142,747.60-214,124.82-47,979.16

Finding the Fourth Proportional to 142,747.60, 214,124.82 and 47,979.16

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Solution

The fourth proportional to 142,747.60, 214,124.82 and 47,979.16 is: 71,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,747.60 : 214,124.82 = 47,979.16 : x
  2. Step 2: Convert to fraction form
    142,747.60/214,124.82 = 47,979.16/x
  3. Step 3: Cross multiply
    142,747.60x = 214,124.82 × 47,979.16
  4. Step 4: Simplify right side
    142,747.60x = 10,273,528,998.75
  5. Step 5: Solve for x
    x = 10,273,528,998.75/142,747.60
  6. Step 6: Final answer
    x = 71,969.89

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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.