Home / 142,455.12-213,693.92-47,685.86

Finding the Fourth Proportional to 142,455.12, 213,693.92 and 47,685.86

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Solution

The fourth proportional to 142,455.12, 213,693.92 and 47,685.86 is: 71,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,455.12 : 213,693.92 = 47,685.86 : x
  2. Step 2: Convert to fraction form
    142,455.12/213,693.92 = 47,685.86/x
  3. Step 3: Cross multiply
    142,455.12x = 213,693.92 × 47,685.86
  4. Step 4: Simplify right side
    142,455.12x = 10,190,178,351.97
  5. Step 5: Solve for x
    x = 10,190,178,351.97/142,455.12
  6. Step 6: Final answer
    x = 71,532.55

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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.