Home / 132,719.06-183,149.75-72,289.01

Finding the Fourth Proportional to 132,719.06, 183,149.75 and 72,289.01

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Solution

The fourth proportional to 132,719.06, 183,149.75 and 72,289.01 is: 99,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,719.06 : 183,149.75 = 72,289.01 : x
  2. Step 2: Convert to fraction form
    132,719.06/183,149.75 = 72,289.01/x
  3. Step 3: Cross multiply
    132,719.06x = 183,149.75 × 72,289.01
  4. Step 4: Simplify right side
    132,719.06x = 13,239,712,832.05
  5. Step 5: Solve for x
    x = 13,239,712,832.05/132,719.06
  6. Step 6: Final answer
    x = 99,757.44

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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.