Home / 161,112.32-222,331.40-93,128.20

Finding the Fourth Proportional to 161,112.32, 222,331.40 and 93,128.20

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Solution

The fourth proportional to 161,112.32, 222,331.40 and 93,128.20 is: 128,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,112.32 : 222,331.40 = 93,128.20 : x
  2. Step 2: Convert to fraction form
    161,112.32/222,331.40 = 93,128.20/x
  3. Step 3: Cross multiply
    161,112.32x = 222,331.40 × 93,128.20
  4. Step 4: Simplify right side
    161,112.32x = 20,705,323,085.48
  5. Step 5: Solve for x
    x = 20,705,323,085.48/161,112.32
  6. Step 6: Final answer
    x = 128,514.83

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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.