Home / 129,210.77-193,882.41-53,365.61

Finding the Fourth Proportional to 129,210.77, 193,882.41 and 53,365.61

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Solution

The fourth proportional to 129,210.77, 193,882.41 and 53,365.61 is: 80,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,210.77 : 193,882.41 = 53,365.61 : x
  2. Step 2: Convert to fraction form
    129,210.77/193,882.41 = 53,365.61/x
  3. Step 3: Cross multiply
    129,210.77x = 193,882.41 × 53,365.61
  4. Step 4: Simplify right side
    129,210.77x = 10,346,653,562.63
  5. Step 5: Solve for x
    x = 10,346,653,562.63/129,210.77
  6. Step 6: Final answer
    x = 80,075.78

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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.