Home / 156,935.30-216,568.15-85,317.13

Finding the Fourth Proportional to 156,935.30, 216,568.15 and 85,317.13

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Solution

The fourth proportional to 156,935.30, 216,568.15 and 85,317.13 is: 117,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.30 : 216,568.15 = 85,317.13 : x
  2. Step 2: Convert to fraction form
    156,935.30/216,568.15 = 85,317.13/x
  3. Step 3: Cross multiply
    156,935.30x = 216,568.15 × 85,317.13
  4. Step 4: Simplify right side
    156,935.30x = 18,476,973,007.41
  5. Step 5: Solve for x
    x = 18,476,973,007.41/156,935.30
  6. Step 6: Final answer
    x = 117,736.25

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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.