Home / 156,891.18-216,511.74-85,272.24

Finding the Fourth Proportional to 156,891.18, 216,511.74 and 85,272.24

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Solution

The fourth proportional to 156,891.18, 216,511.74 and 85,272.24 is: 117,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,891.18 : 216,511.74 = 85,272.24 : x
  2. Step 2: Convert to fraction form
    156,891.18/216,511.74 = 85,272.24/x
  3. Step 3: Cross multiply
    156,891.18x = 216,511.74 × 85,272.24
  4. Step 4: Simplify right side
    156,891.18x = 18,462,441,056.10
  5. Step 5: Solve for x
    x = 18,462,441,056.10/156,891.18
  6. Step 6: Final answer
    x = 117,676.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.