Home / 156,631.32-216,151.44-85,011.34

Finding the Fourth Proportional to 156,631.32, 216,151.44 and 85,011.34

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Solution

The fourth proportional to 156,631.32, 216,151.44 and 85,011.34 is: 117,315.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,631.32 : 216,151.44 = 85,011.34 : x
  2. Step 2: Convert to fraction form
    156,631.32/216,151.44 = 85,011.34/x
  3. Step 3: Cross multiply
    156,631.32x = 216,151.44 × 85,011.34
  4. Step 4: Simplify right side
    156,631.32x = 18,375,323,557.33
  5. Step 5: Solve for x
    x = 18,375,323,557.33/156,631.32
  6. Step 6: Final answer
    x = 117,315.77

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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.