Home / 134,611.42-201,693.93-81,861.34

Finding the Fourth Proportional to 134,611.42, 201,693.93 and 81,861.34

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Solution

The fourth proportional to 134,611.42, 201,693.93 and 81,861.34 is: 122,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,611.42 : 201,693.93 = 81,861.34 : x
  2. Step 2: Convert to fraction form
    134,611.42/201,693.93 = 81,861.34/x
  3. Step 3: Cross multiply
    134,611.42x = 201,693.93 × 81,861.34
  4. Step 4: Simplify right side
    134,611.42x = 16,510,935,379.67
  5. Step 5: Solve for x
    x = 16,510,935,379.67/134,611.42
  6. Step 6: Final answer
    x = 122,656.28

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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.