Home / 161,860.80-223,368.84-90,245.28

Finding the Fourth Proportional to 161,860.80, 223,368.84 and 90,245.28

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Solution

The fourth proportional to 161,860.80, 223,368.84 and 90,245.28 is: 124,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,860.80 : 223,368.84 = 90,245.28 : x
  2. Step 2: Convert to fraction form
    161,860.80/223,368.84 = 90,245.28/x
  3. Step 3: Cross multiply
    161,860.80x = 223,368.84 × 90,245.28
  4. Step 4: Simplify right side
    161,860.80x = 20,157,983,509.08
  5. Step 5: Solve for x
    x = 20,157,983,509.08/161,860.80
  6. Step 6: Final answer
    x = 124,539.01

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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.