Home / 192,929.68-289,440.48-80,547.36

Finding the Fourth Proportional to 192,929.68, 289,440.48 and 80,547.36

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Solution

The fourth proportional to 192,929.68, 289,440.48 and 80,547.36 is: 120,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,929.68 : 289,440.48 = 80,547.36 : x
  2. Step 2: Convert to fraction form
    192,929.68/289,440.48 = 80,547.36/x
  3. Step 3: Cross multiply
    192,929.68x = 289,440.48 × 80,547.36
  4. Step 4: Simplify right side
    192,929.68x = 23,313,666,541.13
  5. Step 5: Solve for x
    x = 23,313,666,541.13/192,929.68
  6. Step 6: Final answer
    x = 120,840.23

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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.