Home / 101,218.14-139,693.41-58,776.71

Finding the Fourth Proportional to 101,218.14, 139,693.41 and 58,776.71

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Solution

The fourth proportional to 101,218.14, 139,693.41 and 58,776.71 is: 81,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,218.14 : 139,693.41 = 58,776.71 : x
  2. Step 2: Convert to fraction form
    101,218.14/139,693.41 = 58,776.71/x
  3. Step 3: Cross multiply
    101,218.14x = 139,693.41 × 58,776.71
  4. Step 4: Simplify right side
    101,218.14x = 8,210,718,350.01
  5. Step 5: Solve for x
    x = 8,210,718,350.01/101,218.14
  6. Step 6: Final answer
    x = 81,119.04

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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.