Home / 156,867.09-216,473.74-85,247.36

Finding the Fourth Proportional to 156,867.09, 216,473.74 and 85,247.36

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Solution

The fourth proportional to 156,867.09, 216,473.74 and 85,247.36 is: 117,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,867.09 : 216,473.74 = 85,247.36 : x
  2. Step 2: Convert to fraction form
    156,867.09/216,473.74 = 85,247.36/x
  3. Step 3: Cross multiply
    156,867.09x = 216,473.74 × 85,247.36
  4. Step 4: Simplify right side
    156,867.09x = 18,453,814,844.33
  5. Step 5: Solve for x
    x = 18,453,814,844.33/156,867.09
  6. Step 6: Final answer
    x = 117,639.81

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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.