Home / 156,914.32-235,188.96-72,497.20

Finding the Fourth Proportional to 156,914.32, 235,188.96 and 72,497.20

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Solution

The fourth proportional to 156,914.32, 235,188.96 and 72,497.20 is: 108,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,914.32 : 235,188.96 = 72,497.20 : x
  2. Step 2: Convert to fraction form
    156,914.32/235,188.96 = 72,497.20/x
  3. Step 3: Cross multiply
    156,914.32x = 235,188.96 × 72,497.20
  4. Step 4: Simplify right side
    156,914.32x = 17,050,541,070.91
  5. Step 5: Solve for x
    x = 17,050,541,070.91/156,914.32
  6. Step 6: Final answer
    x = 108,661.47

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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.