Home / 149,541.90-206,316.78-85,004.61

Finding the Fourth Proportional to 149,541.90, 206,316.78 and 85,004.61

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Solution

The fourth proportional to 149,541.90, 206,316.78 and 85,004.61 is: 117,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,541.90 : 206,316.78 = 85,004.61 : x
  2. Step 2: Convert to fraction form
    149,541.90/206,316.78 = 85,004.61/x
  3. Step 3: Cross multiply
    149,541.90x = 206,316.78 × 85,004.61
  4. Step 4: Simplify right side
    149,541.90x = 17,537,877,420.36
  5. Step 5: Solve for x
    x = 17,537,877,420.36/149,541.90
  6. Step 6: Final answer
    x = 117,277.35

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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.