Home / 161,945.85-223,485.58-90,330.51

Finding the Fourth Proportional to 161,945.85, 223,485.58 and 90,330.51

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Solution

The fourth proportional to 161,945.85, 223,485.58 and 90,330.51 is: 124,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,945.85 : 223,485.58 = 90,330.51 : x
  2. Step 2: Convert to fraction form
    161,945.85/223,485.58 = 90,330.51/x
  3. Step 3: Cross multiply
    161,945.85x = 223,485.58 × 90,330.51
  4. Step 4: Simplify right side
    161,945.85x = 20,187,566,419.05
  5. Step 5: Solve for x
    x = 20,187,566,419.05/161,945.85
  6. Step 6: Final answer
    x = 124,656.28

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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.