Home / 156,928.32-235,209.96-72,511.20

Finding the Fourth Proportional to 156,928.32, 235,209.96 and 72,511.20

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Solution

The fourth proportional to 156,928.32, 235,209.96 and 72,511.20 is: 108,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,928.32 : 235,209.96 = 72,511.20 : x
  2. Step 2: Convert to fraction form
    156,928.32/235,209.96 = 72,511.20/x
  3. Step 3: Cross multiply
    156,928.32x = 235,209.96 × 72,511.20
  4. Step 4: Simplify right side
    156,928.32x = 17,055,356,451.55
  5. Step 5: Solve for x
    x = 17,055,356,451.55/156,928.32
  6. Step 6: Final answer
    x = 108,682.46

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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.