Home / 161,734.80-223,210.44-90,126.48

Finding the Fourth Proportional to 161,734.80, 223,210.44 and 90,126.48

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Solution

The fourth proportional to 161,734.80, 223,210.44 and 90,126.48 is: 124,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,734.80 : 223,210.44 = 90,126.48 : x
  2. Step 2: Convert to fraction form
    161,734.80/223,210.44 = 90,126.48/x
  3. Step 3: Cross multiply
    161,734.80x = 223,210.44 × 90,126.48
  4. Step 4: Simplify right side
    161,734.80x = 20,117,171,256.45
  5. Step 5: Solve for x
    x = 20,117,171,256.45/161,734.80
  6. Step 6: Final answer
    x = 124,383.69

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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.