Home / 661,395.51-991,986.98-181,511.19

Finding the Fourth Proportional to 661,395.51, 991,986.98 and 181,511.19

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Solution

The fourth proportional to 661,395.51, 991,986.98 and 181,511.19 is: 272,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,395.51 : 991,986.98 = 181,511.19 : x
  2. Step 2: Convert to fraction form
    661,395.51/991,986.98 = 181,511.19/x
  3. Step 3: Cross multiply
    661,395.51x = 991,986.98 × 181,511.19
  4. Step 4: Simplify right side
    661,395.51x = 180,056,736,296.75
  5. Step 5: Solve for x
    x = 180,056,736,296.75/661,395.51
  6. Step 6: Final answer
    x = 272,237.62

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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.