Home / 161,612.47-223,028.81-89,999.16

Finding the Fourth Proportional to 161,612.47, 223,028.81 and 89,999.16

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Solution

The fourth proportional to 161,612.47, 223,028.81 and 89,999.16 is: 124,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,612.47 : 223,028.81 = 89,999.16 : x
  2. Step 2: Convert to fraction form
    161,612.47/223,028.81 = 89,999.16/x
  3. Step 3: Cross multiply
    161,612.47x = 223,028.81 × 89,999.16
  4. Step 4: Simplify right side
    161,612.47x = 20,072,405,555.80
  5. Step 5: Solve for x
    x = 20,072,405,555.80/161,612.47
  6. Step 6: Final answer
    x = 124,200.85

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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.