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Finding the Fourth Proportional to 130,099.56, 179,535.06 and 73,509.72

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Solution

The fourth proportional to 130,099.56, 179,535.06 and 73,509.72 is: 101,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,099.56 : 179,535.06 = 73,509.72 : x
  2. Step 2: Convert to fraction form
    130,099.56/179,535.06 = 73,509.72/x
  3. Step 3: Cross multiply
    130,099.56x = 179,535.06 × 73,509.72
  4. Step 4: Simplify right side
    130,099.56x = 13,197,571,990.78
  5. Step 5: Solve for x
    x = 13,197,571,990.78/130,099.56
  6. Step 6: Final answer
    x = 101,442.10

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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.