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Finding the Fourth Proportional to 156,636.74, 216,107.25 and 88,646.96

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Solution

The fourth proportional to 156,636.74, 216,107.25 and 88,646.96 is: 122,303.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.74 : 216,107.25 = 88,646.96 : x
  2. Step 2: Convert to fraction form
    156,636.74/216,107.25 = 88,646.96/x
  3. Step 3: Cross multiply
    156,636.74x = 216,107.25 × 88,646.96
  4. Step 4: Simplify right side
    156,636.74x = 19,157,250,746.46
  5. Step 5: Solve for x
    x = 19,157,250,746.46/156,636.74
  6. Step 6: Final answer
    x = 122,303.69

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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.