Home / 103,040.48-155,380.54-101,635.32

Finding the Fourth Proportional to 103,040.48, 155,380.54 and 101,635.32

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Solution

The fourth proportional to 103,040.48, 155,380.54 and 101,635.32 is: 153,261.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,040.48 : 155,380.54 = 101,635.32 : x
  2. Step 2: Convert to fraction form
    103,040.48/155,380.54 = 101,635.32/x
  3. Step 3: Cross multiply
    103,040.48x = 155,380.54 × 101,635.32
  4. Step 4: Simplify right side
    103,040.48x = 15,792,150,904.67
  5. Step 5: Solve for x
    x = 15,792,150,904.67/103,040.48
  6. Step 6: Final answer
    x = 153,261.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.