Home / 161,328.29-222,623.89-89,706.77

Finding the Fourth Proportional to 161,328.29, 222,623.89 and 89,706.77

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Solution

The fourth proportional to 161,328.29, 222,623.89 and 89,706.77 is: 123,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,328.29 : 222,623.89 = 89,706.77 : x
  2. Step 2: Convert to fraction form
    161,328.29/222,623.89 = 89,706.77/x
  3. Step 3: Cross multiply
    161,328.29x = 222,623.89 × 89,706.77
  4. Step 4: Simplify right side
    161,328.29x = 19,970,869,720.34
  5. Step 5: Solve for x
    x = 19,970,869,720.34/161,328.29
  6. Step 6: Final answer
    x = 123,790.26

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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.