Home / 130,456.56-179,989.26-73,088.20

Finding the Fourth Proportional to 130,456.56, 179,989.26 and 73,088.20

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Solution

The fourth proportional to 130,456.56, 179,989.26 and 73,088.20 is: 100,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,456.56 : 179,989.26 = 73,088.20 : x
  2. Step 2: Convert to fraction form
    130,456.56/179,989.26 = 73,088.20/x
  3. Step 3: Cross multiply
    130,456.56x = 179,989.26 × 73,088.20
  4. Step 4: Simplify right side
    130,456.56x = 13,155,091,032.73
  5. Step 5: Solve for x
    x = 13,155,091,032.73/130,456.56
  6. Step 6: Final answer
    x = 100,838.86

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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.