Home / 190,742.42-286,113.72-66,083.42

Finding the Fourth Proportional to 190,742.42, 286,113.72 and 66,083.42

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Solution

The fourth proportional to 190,742.42, 286,113.72 and 66,083.42 is: 99,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,742.42 : 286,113.72 = 66,083.42 : x
  2. Step 2: Convert to fraction form
    190,742.42/286,113.72 = 66,083.42/x
  3. Step 3: Cross multiply
    190,742.42x = 286,113.72 × 66,083.42
  4. Step 4: Simplify right side
    190,742.42x = 18,907,373,126.52
  5. Step 5: Solve for x
    x = 18,907,373,126.52/190,742.42
  6. Step 6: Final answer
    x = 99,125.16

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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.