Home / 127,356.11-175,752.23-79,637.39

Finding the Fourth Proportional to 127,356.11, 175,752.23 and 79,637.39

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Solution

The fourth proportional to 127,356.11, 175,752.23 and 79,637.39 is: 109,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,356.11 : 175,752.23 = 79,637.39 : x
  2. Step 2: Convert to fraction form
    127,356.11/175,752.23 = 79,637.39/x
  3. Step 3: Cross multiply
    127,356.11x = 175,752.23 × 79,637.39
  4. Step 4: Simplify right side
    127,356.11x = 13,996,447,606.93
  5. Step 5: Solve for x
    x = 13,996,447,606.93/127,356.11
  6. Step 6: Final answer
    x = 109,900.09

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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.