Home / 171,905.16-257,870.16-71,964.84

Finding the Fourth Proportional to 171,905.16, 257,870.16 and 71,964.84

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Solution

The fourth proportional to 171,905.16, 257,870.16 and 71,964.84 is: 107,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,905.16 : 257,870.16 = 71,964.84 : x
  2. Step 2: Convert to fraction form
    171,905.16/257,870.16 = 71,964.84/x
  3. Step 3: Cross multiply
    171,905.16x = 257,870.16 × 71,964.84
  4. Step 4: Simplify right side
    171,905.16x = 18,557,584,805.17
  5. Step 5: Solve for x
    x = 18,557,584,805.17/171,905.16
  6. Step 6: Final answer
    x = 107,952.46

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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.