Home / 85,231.17-127,890.57-65,368.26

Finding the Fourth Proportional to 85,231.17, 127,890.57 and 65,368.26

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Solution

The fourth proportional to 85,231.17, 127,890.57 and 65,368.26 is: 98,086.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,231.17 : 127,890.57 = 65,368.26 : x
  2. Step 2: Convert to fraction form
    85,231.17/127,890.57 = 65,368.26/x
  3. Step 3: Cross multiply
    85,231.17x = 127,890.57 × 65,368.26
  4. Step 4: Simplify right side
    85,231.17x = 8,359,984,187.61
  5. Step 5: Solve for x
    x = 8,359,984,187.61/85,231.17
  6. Step 6: Final answer
    x = 98,086.00

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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.