Home / 190,766.16-285,954.84-85,556.88

Finding the Fourth Proportional to 190,766.16, 285,954.84 and 85,556.88

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Solution

The fourth proportional to 190,766.16, 285,954.84 and 85,556.88 is: 128,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,766.16 : 285,954.84 = 85,556.88 : x
  2. Step 2: Convert to fraction form
    190,766.16/285,954.84 = 85,556.88/x
  3. Step 3: Cross multiply
    190,766.16x = 285,954.84 × 85,556.88
  4. Step 4: Simplify right side
    190,766.16x = 24,465,403,931.30
  5. Step 5: Solve for x
    x = 24,465,403,931.30/190,766.16
  6. Step 6: Final answer
    x = 128,248.13

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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.