Home / 111,577.32-153,979.38-61,277.40

Finding the Fourth Proportional to 111,577.32, 153,979.38 and 61,277.40

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Solution

The fourth proportional to 111,577.32, 153,979.38 and 61,277.40 is: 84,564.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,577.32 : 153,979.38 = 61,277.40 : x
  2. Step 2: Convert to fraction form
    111,577.32/153,979.38 = 61,277.40/x
  3. Step 3: Cross multiply
    111,577.32x = 153,979.38 × 61,277.40
  4. Step 4: Simplify right side
    111,577.32x = 9,435,456,060.01
  5. Step 5: Solve for x
    x = 9,435,456,060.01/111,577.32
  6. Step 6: Final answer
    x = 84,564.28

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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.