Home / 104,845.90-144,689.08-57,100.18

Finding the Fourth Proportional to 104,845.90, 144,689.08 and 57,100.18

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Solution

The fourth proportional to 104,845.90, 144,689.08 and 57,100.18 is: 78,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,845.90 : 144,689.08 = 57,100.18 : x
  2. Step 2: Convert to fraction form
    104,845.90/144,689.08 = 57,100.18/x
  3. Step 3: Cross multiply
    104,845.90x = 144,689.08 × 57,100.18
  4. Step 4: Simplify right side
    104,845.90x = 8,261,772,512.03
  5. Step 5: Solve for x
    x = 8,261,772,512.03/104,845.90
  6. Step 6: Final answer
    x = 78,799.19

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1.5x scale

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.