Home / 111,472.07-153,831.04-66,187.27

Finding the Fourth Proportional to 111,472.07, 153,831.04 and 66,187.27

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Solution

The fourth proportional to 111,472.07, 153,831.04 and 66,187.27 is: 91,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,472.07 : 153,831.04 = 66,187.27 : x
  2. Step 2: Convert to fraction form
    111,472.07/153,831.04 = 66,187.27/x
  3. Step 3: Cross multiply
    111,472.07x = 153,831.04 × 66,187.27
  4. Step 4: Simplify right side
    111,472.07x = 10,181,656,028.82
  5. Step 5: Solve for x
    x = 10,181,656,028.82/111,472.07
  6. Step 6: Final answer
    x = 91,338.18

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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.