Home / 142,119.36-196,024.46-91,146.87

Finding the Fourth Proportional to 142,119.36, 196,024.46 and 91,146.87

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Solution

The fourth proportional to 142,119.36, 196,024.46 and 91,146.87 is: 125,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,119.36 : 196,024.46 = 91,146.87 : x
  2. Step 2: Convert to fraction form
    142,119.36/196,024.46 = 91,146.87/x
  3. Step 3: Cross multiply
    142,119.36x = 196,024.46 × 91,146.87
  4. Step 4: Simplify right side
    142,119.36x = 17,867,015,516.71
  5. Step 5: Solve for x
    x = 17,867,015,516.71/142,119.36
  6. Step 6: Final answer
    x = 125,718.38

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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.