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Finding the Fourth Proportional to 107,883.44, 148,893.72 and 65,435.12

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Solution

The fourth proportional to 107,883.44, 148,893.72 and 65,435.12 is: 90,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,883.44 : 148,893.72 = 65,435.12 : x
  2. Step 2: Convert to fraction form
    107,883.44/148,893.72 = 65,435.12/x
  3. Step 3: Cross multiply
    107,883.44x = 148,893.72 × 65,435.12
  4. Step 4: Simplify right side
    107,883.44x = 9,742,878,435.45
  5. Step 5: Solve for x
    x = 9,742,878,435.45/107,883.44
  6. Step 6: Final answer
    x = 90,309.30

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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.