Home / 161,820.19-223,314.78-90,192.52

Finding the Fourth Proportional to 161,820.19, 223,314.78 and 90,192.52

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Solution

The fourth proportional to 161,820.19, 223,314.78 and 90,192.52 is: 124,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,820.19 : 223,314.78 = 90,192.52 : x
  2. Step 2: Convert to fraction form
    161,820.19/223,314.78 = 90,192.52/x
  3. Step 3: Cross multiply
    161,820.19x = 223,314.78 × 90,192.52
  4. Step 4: Simplify right side
    161,820.19x = 20,141,322,761.45
  5. Step 5: Solve for x
    x = 20,141,322,761.45/161,820.19
  6. Step 6: Final answer
    x = 124,467.30

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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.