Home / 103,622.16-155,433.22-28,742.30

Finding the Fourth Proportional to 103,622.16, 155,433.22 and 28,742.30

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Solution

The fourth proportional to 103,622.16, 155,433.22 and 28,742.30 is: 43,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.16 : 155,433.22 = 28,742.30 : x
  2. Step 2: Convert to fraction form
    103,622.16/155,433.22 = 28,742.30/x
  3. Step 3: Cross multiply
    103,622.16x = 155,433.22 × 28,742.30
  4. Step 4: Simplify right side
    103,622.16x = 4,467,508,239.21
  5. Step 5: Solve for x
    x = 4,467,508,239.21/103,622.16
  6. Step 6: Final answer
    x = 43,113.44

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1.5x scale

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.