Home / 156,769.32-216,342.29-85,150.54

Finding the Fourth Proportional to 156,769.32, 216,342.29 and 85,150.54

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Solution

The fourth proportional to 156,769.32, 216,342.29 and 85,150.54 is: 117,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.32 : 216,342.29 = 85,150.54 : x
  2. Step 2: Convert to fraction form
    156,769.32/216,342.29 = 85,150.54/x
  3. Step 3: Cross multiply
    156,769.32x = 216,342.29 × 85,150.54
  4. Step 4: Simplify right side
    156,769.32x = 18,421,662,392.58
  5. Step 5: Solve for x
    x = 18,421,662,392.58/156,769.32
  6. Step 6: Final answer
    x = 117,508.08

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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.