Home / 156,684.92-216,225.19-85,064.94

Finding the Fourth Proportional to 156,684.92, 216,225.19 and 85,064.94

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Solution

The fourth proportional to 156,684.92, 216,225.19 and 85,064.94 is: 117,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,684.92 : 216,225.19 = 85,064.94 : x
  2. Step 2: Convert to fraction form
    156,684.92/216,225.19 = 85,064.94/x
  3. Step 3: Cross multiply
    156,684.92x = 216,225.19 × 85,064.94
  4. Step 4: Simplify right side
    156,684.92x = 18,393,182,813.84
  5. Step 5: Solve for x
    x = 18,393,182,813.84/156,684.92
  6. Step 6: Final answer
    x = 117,389.62

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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.