Home / 113,485.84-170,171.80-66,116.24

Finding the Fourth Proportional to 113,485.84, 170,171.80 and 66,116.24

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Solution

The fourth proportional to 113,485.84, 170,171.80 and 66,116.24 is: 99,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485.84 : 170,171.80 = 66,116.24 : x
  2. Step 2: Convert to fraction form
    113,485.84/170,171.80 = 66,116.24/x
  3. Step 3: Cross multiply
    113,485.84x = 170,171.80 × 66,116.24
  4. Step 4: Simplify right side
    113,485.84x = 11,251,119,570.03
  5. Step 5: Solve for x
    x = 11,251,119,570.03/113,485.84
  6. Step 6: Final answer
    x = 99,141.18

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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.