Home / 171,106.72-236,123.17-99,511.63

Finding the Fourth Proportional to 171,106.72, 236,123.17 and 99,511.63

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Solution

The fourth proportional to 171,106.72, 236,123.17 and 99,511.63 is: 137,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,106.72 : 236,123.17 = 99,511.63 : x
  2. Step 2: Convert to fraction form
    171,106.72/236,123.17 = 99,511.63/x
  3. Step 3: Cross multiply
    171,106.72x = 236,123.17 × 99,511.63
  4. Step 4: Simplify right side
    171,106.72x = 23,497,001,527.47
  5. Step 5: Solve for x
    x = 23,497,001,527.47/171,106.72
  6. Step 6: Final answer
    x = 137,323.66

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1.5x scale

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.