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Finding the Fourth Proportional to 107,999.78, 149,039.10 and 60,253.02

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Solution

The fourth proportional to 107,999.78, 149,039.10 and 60,253.02 is: 83,148.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,999.78 : 149,039.10 = 60,253.02 : x
  2. Step 2: Convert to fraction form
    107,999.78/149,039.10 = 60,253.02/x
  3. Step 3: Cross multiply
    107,999.78x = 149,039.10 × 60,253.02
  4. Step 4: Simplify right side
    107,999.78x = 8,980,055,873.08
  5. Step 5: Solve for x
    x = 8,980,055,873.08/107,999.78
  6. Step 6: Final answer
    x = 83,148.84

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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.