Home / 161,999.10-223,554.42-90,377.28

Finding the Fourth Proportional to 161,999.10, 223,554.42 and 90,377.28

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Solution

The fourth proportional to 161,999.10, 223,554.42 and 90,377.28 is: 124,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,999.10 : 223,554.42 = 90,377.28 : x
  2. Step 2: Convert to fraction form
    161,999.10/223,554.42 = 90,377.28/x
  3. Step 3: Cross multiply
    161,999.10x = 223,554.42 × 90,377.28
  4. Step 4: Simplify right side
    161,999.10x = 20,204,240,411.58
  5. Step 5: Solve for x
    x = 20,204,240,411.58/161,999.10
  6. Step 6: Final answer
    x = 124,718.23

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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.