Home / 161,811.81-223,295.13-101,415.06

Finding the Fourth Proportional to 161,811.81, 223,295.13 and 101,415.06

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Solution

The fourth proportional to 161,811.81, 223,295.13 and 101,415.06 is: 139,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,811.81 : 223,295.13 = 101,415.06 : x
  2. Step 2: Convert to fraction form
    161,811.81/223,295.13 = 101,415.06/x
  3. Step 3: Cross multiply
    161,811.81x = 223,295.13 × 101,415.06
  4. Step 4: Simplify right side
    161,811.81x = 22,645,489,006.66
  5. Step 5: Solve for x
    x = 22,645,489,006.66/161,811.81
  6. Step 6: Final answer
    x = 139,949.54

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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.