Home / 127,356.36-175,752.57-79,637.64

Finding the Fourth Proportional to 127,356.36, 175,752.57 and 79,637.64

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Solution

The fourth proportional to 127,356.36, 175,752.57 and 79,637.64 is: 109,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,356.36 : 175,752.57 = 79,637.64 : x
  2. Step 2: Convert to fraction form
    127,356.36/175,752.57 = 79,637.64/x
  3. Step 3: Cross multiply
    127,356.36x = 175,752.57 × 79,637.64
  4. Step 4: Simplify right side
    127,356.36x = 13,996,519,898.73
  5. Step 5: Solve for x
    x = 13,996,519,898.73/127,356.36
  6. Step 6: Final answer
    x = 109,900.44

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1.5x scale

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.