Home / 156,972.24-216,622.08-85,352.22

Finding the Fourth Proportional to 156,972.24, 216,622.08 and 85,352.22

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Solution

The fourth proportional to 156,972.24, 216,622.08 and 85,352.22 is: 117,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.24 : 216,622.08 = 85,352.22 : x
  2. Step 2: Convert to fraction form
    156,972.24/216,622.08 = 85,352.22/x
  3. Step 3: Cross multiply
    156,972.24x = 216,622.08 × 85,352.22
  4. Step 4: Simplify right side
    156,972.24x = 18,489,175,429.02
  5. Step 5: Solve for x
    x = 18,489,175,429.02/156,972.24
  6. Step 6: Final answer
    x = 117,786.28

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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.