Home / 108,813.19-150,159.67-61,065.31

Finding the Fourth Proportional to 108,813.19, 150,159.67 and 61,065.31

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Solution

The fourth proportional to 108,813.19, 150,159.67 and 61,065.31 is: 84,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,813.19 : 150,159.67 = 61,065.31 : x
  2. Step 2: Convert to fraction form
    108,813.19/150,159.67 = 61,065.31/x
  3. Step 3: Cross multiply
    108,813.19x = 150,159.67 × 61,065.31
  4. Step 4: Simplify right side
    108,813.19x = 9,169,546,798.05
  5. Step 5: Solve for x
    x = 9,169,546,798.05/108,813.19
  6. Step 6: Final answer
    x = 84,268.71

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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.