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Finding the Fourth Proportional to 122,497.50, 183,746.25 and 39,391.50

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Solution

The fourth proportional to 122,497.50, 183,746.25 and 39,391.50 is: 59,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,497.50 : 183,746.25 = 39,391.50 : x
  2. Step 2: Convert to fraction form
    122,497.50/183,746.25 = 39,391.50/x
  3. Step 3: Cross multiply
    122,497.50x = 183,746.25 × 39,391.50
  4. Step 4: Simplify right side
    122,497.50x = 7,238,040,406.88
  5. Step 5: Solve for x
    x = 7,238,040,406.88/122,497.50
  6. Step 6: Final answer
    x = 59,087.25

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1.5x scale

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.