Home / 156,980.30-235,470.45-143,202.20

Finding the Fourth Proportional to 156,980.30, 235,470.45 and 143,202.20

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Solution

The fourth proportional to 156,980.30, 235,470.45 and 143,202.20 is: 214,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.30 : 235,470.45 = 143,202.20 : x
  2. Step 2: Convert to fraction form
    156,980.30/235,470.45 = 143,202.20/x
  3. Step 3: Cross multiply
    156,980.30x = 235,470.45 × 143,202.20
  4. Step 4: Simplify right side
    156,980.30x = 33,719,886,474.99
  5. Step 5: Solve for x
    x = 33,719,886,474.99/156,980.30
  6. Step 6: Final answer
    x = 214,803.30

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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.