Home / 130,146.74-179,601.24-72,785.42

Finding the Fourth Proportional to 130,146.74, 179,601.24 and 72,785.42

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Solution

The fourth proportional to 130,146.74, 179,601.24 and 72,785.42 is: 100,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,146.74 : 179,601.24 = 72,785.42 : x
  2. Step 2: Convert to fraction form
    130,146.74/179,601.24 = 72,785.42/x
  3. Step 3: Cross multiply
    130,146.74x = 179,601.24 × 72,785.42
  4. Step 4: Simplify right side
    130,146.74x = 13,072,351,685.92
  5. Step 5: Solve for x
    x = 13,072,351,685.92/130,146.74
  6. Step 6: Final answer
    x = 100,443.17

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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.