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Finding the Fourth Proportional to 130,309.50, 179,825.90 and 73,720.88

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Solution

The fourth proportional to 130,309.50, 179,825.90 and 73,720.88 is: 101,734.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,309.50 : 179,825.90 = 73,720.88 : x
  2. Step 2: Convert to fraction form
    130,309.50/179,825.90 = 73,720.88/x
  3. Step 3: Cross multiply
    130,309.50x = 179,825.90 × 73,720.88
  4. Step 4: Simplify right side
    130,309.50x = 13,256,922,327.06
  5. Step 5: Solve for x
    x = 13,256,922,327.06/130,309.50
  6. Step 6: Final answer
    x = 101,734.12

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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.