Home / 156,925.62-216,558.77-85,305.78

Finding the Fourth Proportional to 156,925.62, 216,558.77 and 85,305.78

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Solution

The fourth proportional to 156,925.62, 216,558.77 and 85,305.78 is: 117,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,925.62 : 216,558.77 = 85,305.78 : x
  2. Step 2: Convert to fraction form
    156,925.62/216,558.77 = 85,305.78/x
  3. Step 3: Cross multiply
    156,925.62x = 216,558.77 × 85,305.78
  4. Step 4: Simplify right side
    156,925.62x = 18,473,714,364.16
  5. Step 5: Solve for x
    x = 18,473,714,364.16/156,925.62
  6. Step 6: Final answer
    x = 117,722.74

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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.