Home / 161,287.69-222,564.39-89,663.35

Finding the Fourth Proportional to 161,287.69, 222,564.39 and 89,663.35

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Solution

The fourth proportional to 161,287.69, 222,564.39 and 89,663.35 is: 123,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,287.69 : 222,564.39 = 89,663.35 : x
  2. Step 2: Convert to fraction form
    161,287.69/222,564.39 = 89,663.35/x
  3. Step 3: Cross multiply
    161,287.69x = 222,564.39 × 89,663.35
  4. Step 4: Simplify right side
    161,287.69x = 19,955,868,798.11
  5. Step 5: Solve for x
    x = 19,955,868,798.11/161,287.69
  6. Step 6: Final answer
    x = 123,728.41

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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.