Home / 156,960.08-235,308.75-72,780.32

Finding the Fourth Proportional to 156,960.08, 235,308.75 and 72,780.32

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Solution

The fourth proportional to 156,960.08, 235,308.75 and 72,780.32 is: 109,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,960.08 : 235,308.75 = 72,780.32 : x
  2. Step 2: Convert to fraction form
    156,960.08/235,308.75 = 72,780.32/x
  3. Step 3: Cross multiply
    156,960.08x = 235,308.75 × 72,780.32
  4. Step 4: Simplify right side
    156,960.08x = 17,125,846,439.15
  5. Step 5: Solve for x
    x = 17,125,846,439.15/156,960.08
  6. Step 6: Final answer
    x = 109,109.57

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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.