Home / 161,039.48-222,230.21-89,417.66

Finding the Fourth Proportional to 161,039.48, 222,230.21 and 89,417.66

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Solution

The fourth proportional to 161,039.48, 222,230.21 and 89,417.66 is: 123,393.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,039.48 : 222,230.21 = 89,417.66 : x
  2. Step 2: Convert to fraction form
    161,039.48/222,230.21 = 89,417.66/x
  3. Step 3: Cross multiply
    161,039.48x = 222,230.21 × 89,417.66
  4. Step 4: Simplify right side
    161,039.48x = 19,871,303,801.27
  5. Step 5: Solve for x
    x = 19,871,303,801.27/161,039.48
  6. Step 6: Final answer
    x = 123,393.99

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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.