Home / 156,980.40-235,470.60-109,741.20

Finding the Fourth Proportional to 156,980.40, 235,470.60 and 109,741.20

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Solution

The fourth proportional to 156,980.40, 235,470.60 and 109,741.20 is: 164,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.40 : 235,470.60 = 109,741.20 : x
  2. Step 2: Convert to fraction form
    156,980.40/235,470.60 = 109,741.20/x
  3. Step 3: Cross multiply
    156,980.40x = 235,470.60 × 109,741.20
  4. Step 4: Simplify right side
    156,980.40x = 25,840,826,208.72
  5. Step 5: Solve for x
    x = 25,840,826,208.72/156,980.40
  6. Step 6: Final answer
    x = 164,611.80

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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.