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Finding the Fourth Proportional to 130,013.68, 179,406.12 and 73,414.12

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Solution

The fourth proportional to 130,013.68, 179,406.12 and 73,414.12 is: 101,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,013.68 : 179,406.12 = 73,414.12 : x
  2. Step 2: Convert to fraction form
    130,013.68/179,406.12 = 73,414.12/x
  3. Step 3: Cross multiply
    130,013.68x = 179,406.12 × 73,414.12
  4. Step 4: Simplify right side
    130,013.68x = 13,170,942,422.41
  5. Step 5: Solve for x
    x = 13,170,942,422.41/130,013.68
  6. Step 6: Final answer
    x = 101,304.28

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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.