Home / 156,632.21-216,150.35-85,011.60

Finding the Fourth Proportional to 156,632.21, 216,150.35 and 85,011.60

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Solution

The fourth proportional to 156,632.21, 216,150.35 and 85,011.60 is: 117,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,632.21 : 216,150.35 = 85,011.60 : x
  2. Step 2: Convert to fraction form
    156,632.21/216,150.35 = 85,011.60/x
  3. Step 3: Cross multiply
    156,632.21x = 216,150.35 × 85,011.60
  4. Step 4: Simplify right side
    156,632.21x = 18,375,287,094.06
  5. Step 5: Solve for x
    x = 18,375,287,094.06/156,632.21
  6. Step 6: Final answer
    x = 117,314.87

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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.