Home / 161,531.19-222,908.09-89,909.37

Finding the Fourth Proportional to 161,531.19, 222,908.09 and 89,909.37

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Solution

The fourth proportional to 161,531.19, 222,908.09 and 89,909.37 is: 124,072.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,531.19 : 222,908.09 = 89,909.37 : x
  2. Step 2: Convert to fraction form
    161,531.19/222,908.09 = 89,909.37/x
  3. Step 3: Cross multiply
    161,531.19x = 222,908.09 × 89,909.37
  4. Step 4: Simplify right side
    161,531.19x = 20,041,525,490.26
  5. Step 5: Solve for x
    x = 20,041,525,490.26/161,531.19
  6. Step 6: Final answer
    x = 124,072.17

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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.