Home / 139,547.24-192,507.54-82,918.52

Finding the Fourth Proportional to 139,547.24, 192,507.54 and 82,918.52

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Solution

The fourth proportional to 139,547.24, 192,507.54 and 82,918.52 is: 114,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,547.24 : 192,507.54 = 82,918.52 : x
  2. Step 2: Convert to fraction form
    139,547.24/192,507.54 = 82,918.52/x
  3. Step 3: Cross multiply
    139,547.24x = 192,507.54 × 82,918.52
  4. Step 4: Simplify right side
    139,547.24x = 15,962,440,305.64
  5. Step 5: Solve for x
    x = 15,962,440,305.64/139,547.24
  6. Step 6: Final answer
    x = 114,387.36

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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.