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Finding the Fourth Proportional to 107,999.64, 149,039.93 and 60,255

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Solution

The fourth proportional to 107,999.64, 149,039.93 and 60,255 is: 83,152.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,999.64 : 149,039.93 = 60,255 : x
  2. Step 2: Convert to fraction form
    107,999.64/149,039.93 = 60,255/x
  3. Step 3: Cross multiply
    107,999.64x = 149,039.93 × 60,255
  4. Step 4: Simplify right side
    107,999.64x = 8,980,401,132.79
  5. Step 5: Solve for x
    x = 8,980,401,132.79/107,999.64
  6. Step 6: Final answer
    x = 83,152.14

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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.