Home / 156,771.45-216,346.95-85,152.87

Finding the Fourth Proportional to 156,771.45, 216,346.95 and 85,152.87

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Solution

The fourth proportional to 156,771.45, 216,346.95 and 85,152.87 is: 117,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,771.45 : 216,346.95 = 85,152.87 : x
  2. Step 2: Convert to fraction form
    156,771.45/216,346.95 = 85,152.87/x
  3. Step 3: Cross multiply
    156,771.45x = 216,346.95 × 85,152.87
  4. Step 4: Simplify right side
    156,771.45x = 18,422,563,708.25
  5. Step 5: Solve for x
    x = 18,422,563,708.25/156,771.45
  6. Step 6: Final answer
    x = 117,512.24

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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.