Home / 149,857.74-206,825.34-89,430.93

Finding the Fourth Proportional to 149,857.74, 206,825.34 and 89,430.93

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Solution

The fourth proportional to 149,857.74, 206,825.34 and 89,430.93 is: 123,427.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,857.74 : 206,825.34 = 89,430.93 : x
  2. Step 2: Convert to fraction form
    149,857.74/206,825.34 = 89,430.93/x
  3. Step 3: Cross multiply
    149,857.74x = 206,825.34 × 89,430.93
  4. Step 4: Simplify right side
    149,857.74x = 18,496,582,503.77
  5. Step 5: Solve for x
    x = 18,496,582,503.77/149,857.74
  6. Step 6: Final answer
    x = 123,427.61

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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.