Home / 111,643.04-154,067.36-61,345.28

Finding the Fourth Proportional to 111,643.04, 154,067.36 and 61,345.28

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Solution

The fourth proportional to 111,643.04, 154,067.36 and 61,345.28 is: 84,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,643.04 : 154,067.36 = 61,345.28 : x
  2. Step 2: Convert to fraction form
    111,643.04/154,067.36 = 61,345.28/x
  3. Step 3: Cross multiply
    111,643.04x = 154,067.36 × 61,345.28
  4. Step 4: Simplify right side
    111,643.04x = 9,451,305,338.06
  5. Step 5: Solve for x
    x = 9,451,305,338.06/111,643.04
  6. Step 6: Final answer
    x = 84,656.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.