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Finding the Fourth Proportional to 136,016.40, 204,024.60 and 91,779.60

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Solution

The fourth proportional to 136,016.40, 204,024.60 and 91,779.60 is: 137,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,016.40 : 204,024.60 = 91,779.60 : x
  2. Step 2: Convert to fraction form
    136,016.40/204,024.60 = 91,779.60/x
  3. Step 3: Cross multiply
    136,016.40x = 204,024.60 × 91,779.60
  4. Step 4: Simplify right side
    136,016.40x = 18,725,296,178.16
  5. Step 5: Solve for x
    x = 18,725,296,178.16/136,016.40
  6. Step 6: Final answer
    x = 137,669.40

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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.