Home / 101,177.07-139,624.56-55,855.11

Finding the Fourth Proportional to 101,177.07, 139,624.56 and 55,855.11

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Solution

The fourth proportional to 101,177.07, 139,624.56 and 55,855.11 is: 77,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,177.07 : 139,624.56 = 55,855.11 : x
  2. Step 2: Convert to fraction form
    101,177.07/139,624.56 = 55,855.11/x
  3. Step 3: Cross multiply
    101,177.07x = 139,624.56 × 55,855.11
  4. Step 4: Simplify right side
    101,177.07x = 7,798,745,506.56
  5. Step 5: Solve for x
    x = 7,798,745,506.56/101,177.07
  6. Step 6: Final answer
    x = 77,080.17

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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.