Home / 84,923.60-127,231.80-69,256.40

Finding the Fourth Proportional to 84,923.60, 127,231.80 and 69,256.40

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Solution

The fourth proportional to 84,923.60, 127,231.80 and 69,256.40 is: 103,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,923.60 : 127,231.80 = 69,256.40 : x
  2. Step 2: Convert to fraction form
    84,923.60/127,231.80 = 69,256.40/x
  3. Step 3: Cross multiply
    84,923.60x = 127,231.80 × 69,256.40
  4. Step 4: Simplify right side
    84,923.60x = 8,811,616,433.52
  5. Step 5: Solve for x
    x = 8,811,616,433.52/84,923.60
  6. Step 6: Final answer
    x = 103,759.34

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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.