Home / 120,528.28-166,311.51-66,813.25

Finding the Fourth Proportional to 120,528.28, 166,311.51 and 66,813.25

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Solution

The fourth proportional to 120,528.28, 166,311.51 and 66,813.25 is: 92,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528.28 : 166,311.51 = 66,813.25 : x
  2. Step 2: Convert to fraction form
    120,528.28/166,311.51 = 66,813.25/x
  3. Step 3: Cross multiply
    120,528.28x = 166,311.51 × 66,813.25
  4. Step 4: Simplify right side
    120,528.28x = 11,111,812,495.51
  5. Step 5: Solve for x
    x = 11,111,812,495.51/120,528.28
  6. Step 6: Final answer
    x = 92,192.58

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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.