Home / 136,932.70-205,053.45-89,931.10

Finding the Fourth Proportional to 136,932.70, 205,053.45 and 89,931.10

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Solution

The fourth proportional to 136,932.70, 205,053.45 and 89,931.10 is: 134,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,932.70 : 205,053.45 = 89,931.10 : x
  2. Step 2: Convert to fraction form
    136,932.70/205,053.45 = 89,931.10/x
  3. Step 3: Cross multiply
    136,932.70x = 205,053.45 × 89,931.10
  4. Step 4: Simplify right side
    136,932.70x = 18,440,682,317.30
  5. Step 5: Solve for x
    x = 18,440,682,317.30/136,932.70
  6. Step 6: Final answer
    x = 134,669.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.