Home / 205,904.20-284,127.06-115,254.28

Finding the Fourth Proportional to 205,904.20, 284,127.06 and 115,254.28

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Solution

The fourth proportional to 205,904.20, 284,127.06 and 115,254.28 is: 159,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,904.20 : 284,127.06 = 115,254.28 : x
  2. Step 2: Convert to fraction form
    205,904.20/284,127.06 = 115,254.28/x
  3. Step 3: Cross multiply
    205,904.20x = 284,127.06 × 115,254.28
  4. Step 4: Simplify right side
    205,904.20x = 32,746,859,728.82
  5. Step 5: Solve for x
    x = 32,746,859,728.82/205,904.20
  6. Step 6: Final answer
    x = 159,039.30

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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.