Home / 161,112.95-222,335.75-89,499.63

Finding the Fourth Proportional to 161,112.95, 222,335.75 and 89,499.63

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Solution

The fourth proportional to 161,112.95, 222,335.75 and 89,499.63 is: 123,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,112.95 : 222,335.75 = 89,499.63 : x
  2. Step 2: Convert to fraction form
    161,112.95/222,335.75 = 89,499.63/x
  3. Step 3: Cross multiply
    161,112.95x = 222,335.75 × 89,499.63
  4. Step 4: Simplify right side
    161,112.95x = 19,898,967,584.52
  5. Step 5: Solve for x
    x = 19,898,967,584.52/161,112.95
  6. Step 6: Final answer
    x = 123,509.43

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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.