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Finding the Fourth Proportional to 130,336.17, 179,863.83 and 70,720.17

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Solution

The fourth proportional to 130,336.17, 179,863.83 and 70,720.17 is: 97,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,336.17 : 179,863.83 = 70,720.17 : x
  2. Step 2: Convert to fraction form
    130,336.17/179,863.83 = 70,720.17/x
  3. Step 3: Cross multiply
    130,336.17x = 179,863.83 × 70,720.17
  4. Step 4: Simplify right side
    130,336.17x = 12,720,000,634.45
  5. Step 5: Solve for x
    x = 12,720,000,634.45/130,336.17
  6. Step 6: Final answer
    x = 97,593.79

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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.