Home / 207,905.43-286,844-127,248.87

Finding the Fourth Proportional to 207,905.43, 286,844 and 127,248.87

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Solution

The fourth proportional to 207,905.43, 286,844 and 127,248.87 is: 175,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.43 : 286,844 = 127,248.87 : x
  2. Step 2: Convert to fraction form
    207,905.43/286,844 = 127,248.87/x
  3. Step 3: Cross multiply
    207,905.43x = 286,844 × 127,248.87
  4. Step 4: Simplify right side
    207,905.43x = 36,500,574,866.28
  5. Step 5: Solve for x
    x = 36,500,574,866.28/207,905.43
  6. Step 6: Final answer
    x = 175,563.36

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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.