Home / 161,365.05-222,686.63-89,745.11

Finding the Fourth Proportional to 161,365.05, 222,686.63 and 89,745.11

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Solution

The fourth proportional to 161,365.05, 222,686.63 and 89,745.11 is: 123,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,365.05 : 222,686.63 = 89,745.11 : x
  2. Step 2: Convert to fraction form
    161,365.05/222,686.63 = 89,745.11/x
  3. Step 3: Cross multiply
    161,365.05x = 222,686.63 × 89,745.11
  4. Step 4: Simplify right side
    161,365.05x = 19,985,034,991.45
  5. Step 5: Solve for x
    x = 19,985,034,991.45/161,365.05
  6. Step 6: Final answer
    x = 123,849.84

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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.