Home / 148,865.64-205,438.50-85,223.94

Finding the Fourth Proportional to 148,865.64, 205,438.50 and 85,223.94

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Solution

The fourth proportional to 148,865.64, 205,438.50 and 85,223.94 is: 117,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,865.64 : 205,438.50 = 85,223.94 : x
  2. Step 2: Convert to fraction form
    148,865.64/205,438.50 = 85,223.94/x
  3. Step 3: Cross multiply
    148,865.64x = 205,438.50 × 85,223.94
  4. Step 4: Simplify right side
    148,865.64x = 17,508,278,397.69
  5. Step 5: Solve for x
    x = 17,508,278,397.69/148,865.64
  6. Step 6: Final answer
    x = 117,611.28

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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.