Home / 143,685.23-198,291.74-80,023.01

Finding the Fourth Proportional to 143,685.23, 198,291.74 and 80,023.01

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Solution

The fourth proportional to 143,685.23, 198,291.74 and 80,023.01 is: 110,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,685.23 : 198,291.74 = 80,023.01 : x
  2. Step 2: Convert to fraction form
    143,685.23/198,291.74 = 80,023.01/x
  3. Step 3: Cross multiply
    143,685.23x = 198,291.74 × 80,023.01
  4. Step 4: Simplify right side
    143,685.23x = 15,867,900,501.36
  5. Step 5: Solve for x
    x = 15,867,900,501.36/143,685.23
  6. Step 6: Final answer
    x = 110,435.16

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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.