Home / 207,683.36-312,087.84-112,983.51

Finding the Fourth Proportional to 207,683.36, 312,087.84 and 112,983.51

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Solution

The fourth proportional to 207,683.36, 312,087.84 and 112,983.51 is: 169,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,683.36 : 312,087.84 = 112,983.51 : x
  2. Step 2: Convert to fraction form
    207,683.36/312,087.84 = 112,983.51/x
  3. Step 3: Cross multiply
    207,683.36x = 312,087.84 × 112,983.51
  4. Step 4: Simplify right side
    207,683.36x = 35,260,779,591.52
  5. Step 5: Solve for x
    x = 35,260,779,591.52/207,683.36
  6. Step 6: Final answer
    x = 169,781.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.