Home / 142,632.36-196,831.97-77,221.23

Finding the Fourth Proportional to 142,632.36, 196,831.97 and 77,221.23

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Solution

The fourth proportional to 142,632.36, 196,831.97 and 77,221.23 is: 106,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,632.36 : 196,831.97 = 77,221.23 : x
  2. Step 2: Convert to fraction form
    142,632.36/196,831.97 = 77,221.23/x
  3. Step 3: Cross multiply
    142,632.36x = 196,831.97 × 77,221.23
  4. Step 4: Simplify right side
    142,632.36x = 15,199,605,992.08
  5. Step 5: Solve for x
    x = 15,199,605,992.08/142,632.36
  6. Step 6: Final answer
    x = 106,564.92

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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.