Home / 175,421.46-242,192.31-121,687.68

Finding the Fourth Proportional to 175,421.46, 242,192.31 and 121,687.68

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Solution

The fourth proportional to 175,421.46, 242,192.31 and 121,687.68 is: 168,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,421.46 : 242,192.31 = 121,687.68 : x
  2. Step 2: Convert to fraction form
    175,421.46/242,192.31 = 121,687.68/x
  3. Step 3: Cross multiply
    175,421.46x = 242,192.31 × 121,687.68
  4. Step 4: Simplify right side
    175,421.46x = 29,471,820,317.74
  5. Step 5: Solve for x
    x = 29,471,820,317.74/175,421.46
  6. Step 6: Final answer
    x = 168,005.79

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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.