Home / 142,453.04-213,728.31-53,731.91

Finding the Fourth Proportional to 142,453.04, 213,728.31 and 53,731.91

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Solution

The fourth proportional to 142,453.04, 213,728.31 and 53,731.91 is: 80,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,453.04 : 213,728.31 = 53,731.91 : x
  2. Step 2: Convert to fraction form
    142,453.04/213,728.31 = 53,731.91/x
  3. Step 3: Cross multiply
    142,453.04x = 213,728.31 × 53,731.91
  4. Step 4: Simplify right side
    142,453.04x = 11,484,029,248.73
  5. Step 5: Solve for x
    x = 11,484,029,248.73/142,453.04
  6. Step 6: Final answer
    x = 80,616.25

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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.