Home / 156,943.23-216,579.25-85,322.62

Finding the Fourth Proportional to 156,943.23, 216,579.25 and 85,322.62

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Solution

The fourth proportional to 156,943.23, 216,579.25 and 85,322.62 is: 117,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,943.23 : 216,579.25 = 85,322.62 : x
  2. Step 2: Convert to fraction form
    156,943.23/216,579.25 = 85,322.62/x
  3. Step 3: Cross multiply
    156,943.23x = 216,579.25 × 85,322.62
  4. Step 4: Simplify right side
    156,943.23x = 18,479,109,047.64
  5. Step 5: Solve for x
    x = 18,479,109,047.64/156,943.23
  6. Step 6: Final answer
    x = 117,743.91

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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.