Home / 142,155.80-213,232.65-57,896.16

Finding the Fourth Proportional to 142,155.80, 213,232.65 and 57,896.16

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Solution

The fourth proportional to 142,155.80, 213,232.65 and 57,896.16 is: 86,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,155.80 : 213,232.65 = 57,896.16 : x
  2. Step 2: Convert to fraction form
    142,155.80/213,232.65 = 57,896.16/x
  3. Step 3: Cross multiply
    142,155.80x = 213,232.65 × 57,896.16
  4. Step 4: Simplify right side
    142,155.80x = 12,345,351,621.62
  5. Step 5: Solve for x
    x = 12,345,351,621.62/142,155.80
  6. Step 6: Final answer
    x = 86,843.81

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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.