Home / 149,126.46-205,803.03-85,474.86

Finding the Fourth Proportional to 149,126.46, 205,803.03 and 85,474.86

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Solution

The fourth proportional to 149,126.46, 205,803.03 and 85,474.86 is: 117,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,126.46 : 205,803.03 = 85,474.86 : x
  2. Step 2: Convert to fraction form
    149,126.46/205,803.03 = 85,474.86/x
  3. Step 3: Cross multiply
    149,126.46x = 205,803.03 × 85,474.86
  4. Step 4: Simplify right side
    149,126.46x = 17,590,985,176.83
  5. Step 5: Solve for x
    x = 17,590,985,176.83/149,126.46
  6. Step 6: Final answer
    x = 117,960.19

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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.