Home / 142,550.87-213,792.62-47,784.51

Finding the Fourth Proportional to 142,550.87, 213,792.62 and 47,784.51

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Solution

The fourth proportional to 142,550.87, 213,792.62 and 47,784.51 is: 71,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,550.87 : 213,792.62 = 47,784.51 : x
  2. Step 2: Convert to fraction form
    142,550.87/213,792.62 = 47,784.51/x
  3. Step 3: Cross multiply
    142,550.87x = 213,792.62 × 47,784.51
  4. Step 4: Simplify right side
    142,550.87x = 10,215,975,349.39
  5. Step 5: Solve for x
    x = 10,215,975,349.39/142,550.87
  6. Step 6: Final answer
    x = 71,665.47

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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.