Home / 201,574.32-278,184.06-115,547.64

Finding the Fourth Proportional to 201,574.32, 278,184.06 and 115,547.64

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Solution

The fourth proportional to 201,574.32, 278,184.06 and 115,547.64 is: 159,462.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,574.32 : 278,184.06 = 115,547.64 : x
  2. Step 2: Convert to fraction form
    201,574.32/278,184.06 = 115,547.64/x
  3. Step 3: Cross multiply
    201,574.32x = 278,184.06 × 115,547.64
  4. Step 4: Simplify right side
    201,574.32x = 32,143,511,618.62
  5. Step 5: Solve for x
    x = 32,143,511,618.62/201,574.32
  6. Step 6: Final answer
    x = 159,462.33

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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.