Home / 152,721.24-230,111.70-126,645.72

Finding the Fourth Proportional to 152,721.24, 230,111.70 and 126,645.72

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Solution

The fourth proportional to 152,721.24, 230,111.70 and 126,645.72 is: 190,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,721.24 : 230,111.70 = 126,645.72 : x
  2. Step 2: Convert to fraction form
    152,721.24/230,111.70 = 126,645.72/x
  3. Step 3: Cross multiply
    152,721.24x = 230,111.70 × 126,645.72
  4. Step 4: Simplify right side
    152,721.24x = 29,142,661,926.92
  5. Step 5: Solve for x
    x = 29,142,661,926.92/152,721.24
  6. Step 6: Final answer
    x = 190,822.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.