Home / 207,153.85-285,894.25-126,628.51

Finding the Fourth Proportional to 207,153.85, 285,894.25 and 126,628.51

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Solution

The fourth proportional to 207,153.85, 285,894.25 and 126,628.51 is: 174,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,153.85 : 285,894.25 = 126,628.51 : x
  2. Step 2: Convert to fraction form
    207,153.85/285,894.25 = 126,628.51/x
  3. Step 3: Cross multiply
    207,153.85x = 285,894.25 × 126,628.51
  4. Step 4: Simplify right side
    207,153.85x = 36,202,363,926.37
  5. Step 5: Solve for x
    x = 36,202,363,926.37/207,153.85
  6. Step 6: Final answer
    x = 174,760.76

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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.