Home / 156,814-216,393.20-88,845.28

Finding the Fourth Proportional to 156,814, 216,393.20 and 88,845.28

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Solution

The fourth proportional to 156,814, 216,393.20 and 88,845.28 is: 122,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,814 : 216,393.20 = 88,845.28 : x
  2. Step 2: Convert to fraction form
    156,814/216,393.20 = 88,845.28/x
  3. Step 3: Cross multiply
    156,814x = 216,393.20 × 88,845.28
  4. Step 4: Simplify right side
    156,814x = 19,225,514,444.10
  5. Step 5: Solve for x
    x = 19,225,514,444.10/156,814
  6. Step 6: Final answer
    x = 122,600.75

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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.