Home / 166,383.30-249,611.40-66,518.40

Finding the Fourth Proportional to 166,383.30, 249,611.40 and 66,518.40

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Solution

The fourth proportional to 166,383.30, 249,611.40 and 66,518.40 is: 99,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,383.30 : 249,611.40 = 66,518.40 : x
  2. Step 2: Convert to fraction form
    166,383.30/249,611.40 = 66,518.40/x
  3. Step 3: Cross multiply
    166,383.30x = 249,611.40 × 66,518.40
  4. Step 4: Simplify right side
    166,383.30x = 16,603,750,949.76
  5. Step 5: Solve for x
    x = 16,603,750,949.76/166,383.30
  6. Step 6: Final answer
    x = 99,792.17

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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.