Home / 109,557.54-151,193.92-61,810.68

Finding the Fourth Proportional to 109,557.54, 151,193.92 and 61,810.68

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Solution

The fourth proportional to 109,557.54, 151,193.92 and 61,810.68 is: 85,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,557.54 : 151,193.92 = 61,810.68 : x
  2. Step 2: Convert to fraction form
    109,557.54/151,193.92 = 61,810.68/x
  3. Step 3: Cross multiply
    109,557.54x = 151,193.92 × 61,810.68
  4. Step 4: Simplify right side
    109,557.54x = 9,345,399,007.07
  5. Step 5: Solve for x
    x = 9,345,399,007.07/109,557.54
  6. Step 6: Final answer
    x = 85,301.29

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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.