Home / 207,685.79-286,606.38-112,192.49

Finding the Fourth Proportional to 207,685.79, 286,606.38 and 112,192.49

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Solution

The fourth proportional to 207,685.79, 286,606.38 and 112,192.49 is: 154,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,685.79 : 286,606.38 = 112,192.49 : x
  2. Step 2: Convert to fraction form
    207,685.79/286,606.38 = 112,192.49/x
  3. Step 3: Cross multiply
    207,685.79x = 286,606.38 × 112,192.49
  4. Step 4: Simplify right side
    207,685.79x = 32,155,081,989.05
  5. Step 5: Solve for x
    x = 32,155,081,989.05/207,685.79
  6. Step 6: Final answer
    x = 154,825.63

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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.