Home / 156,880.32-216,496.27-85,260.51

Finding the Fourth Proportional to 156,880.32, 216,496.27 and 85,260.51

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Solution

The fourth proportional to 156,880.32, 216,496.27 and 85,260.51 is: 117,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,880.32 : 216,496.27 = 85,260.51 : x
  2. Step 2: Convert to fraction form
    156,880.32/216,496.27 = 85,260.51/x
  3. Step 3: Cross multiply
    156,880.32x = 216,496.27 × 85,260.51
  4. Step 4: Simplify right side
    156,880.32x = 18,458,582,393.30
  5. Step 5: Solve for x
    x = 18,458,582,393.30/156,880.32
  6. Step 6: Final answer
    x = 117,660.28

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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.