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Finding the Fourth Proportional to 130,729.71, 196,094.58 and 91,363.71

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Solution

The fourth proportional to 130,729.71, 196,094.58 and 91,363.71 is: 137,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,729.71 : 196,094.58 = 91,363.71 : x
  2. Step 2: Convert to fraction form
    130,729.71/196,094.58 = 91,363.71/x
  3. Step 3: Cross multiply
    130,729.71x = 196,094.58 × 91,363.71
  4. Step 4: Simplify right side
    130,729.71x = 17,915,928,339.69
  5. Step 5: Solve for x
    x = 17,915,928,339.69/130,729.71
  6. Step 6: Final answer
    x = 137,045.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.