Home / 161,802.85-223,288.19-90,181.34

Finding the Fourth Proportional to 161,802.85, 223,288.19 and 90,181.34

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Solution

The fourth proportional to 161,802.85, 223,288.19 and 90,181.34 is: 124,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,802.85 : 223,288.19 = 90,181.34 : x
  2. Step 2: Convert to fraction form
    161,802.85/223,288.19 = 90,181.34/x
  3. Step 3: Cross multiply
    161,802.85x = 223,288.19 × 90,181.34
  4. Step 4: Simplify right side
    161,802.85x = 20,136,428,180.37
  5. Step 5: Solve for x
    x = 20,136,428,180.37/161,802.85
  6. Step 6: Final answer
    x = 124,450.39

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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.