Home / 143,078.08-214,452-105,073.60

Finding the Fourth Proportional to 143,078.08, 214,452 and 105,073.60

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Solution

The fourth proportional to 143,078.08, 214,452 and 105,073.60 is: 157,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,078.08 : 214,452 = 105,073.60 : x
  2. Step 2: Convert to fraction form
    143,078.08/214,452 = 105,073.60/x
  3. Step 3: Cross multiply
    143,078.08x = 214,452 × 105,073.60
  4. Step 4: Simplify right side
    143,078.08x = 22,533,243,667.20
  5. Step 5: Solve for x
    x = 22,533,243,667.20/143,078.08
  6. Step 6: Final answer
    x = 157,489.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.