Home / 152,782.60-210,865.26-89,120.34

Finding the Fourth Proportional to 152,782.60, 210,865.26 and 89,120.34

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Solution

The fourth proportional to 152,782.60, 210,865.26 and 89,120.34 is: 123,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,782.60 : 210,865.26 = 89,120.34 : x
  2. Step 2: Convert to fraction form
    152,782.60/210,865.26 = 89,120.34/x
  3. Step 3: Cross multiply
    152,782.60x = 210,865.26 × 89,120.34
  4. Step 4: Simplify right side
    152,782.60x = 18,792,383,665.39
  5. Step 5: Solve for x
    x = 18,792,383,665.39/152,782.60
  6. Step 6: Final answer
    x = 123,000.81

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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.