Home / 207,666.38-286,579.71-112,173.05

Finding the Fourth Proportional to 207,666.38, 286,579.71 and 112,173.05

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Solution

The fourth proportional to 207,666.38, 286,579.71 and 112,173.05 is: 154,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,666.38 : 286,579.71 = 112,173.05 : x
  2. Step 2: Convert to fraction form
    207,666.38/286,579.71 = 112,173.05/x
  3. Step 3: Cross multiply
    207,666.38x = 286,579.71 × 112,173.05
  4. Step 4: Simplify right side
    207,666.38x = 32,146,518,145.05
  5. Step 5: Solve for x
    x = 32,146,518,145.05/207,666.38
  6. Step 6: Final answer
    x = 154,798.86

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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.