Home / 143,611.58-198,117.47-92,640.74

Finding the Fourth Proportional to 143,611.58, 198,117.47 and 92,640.74

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Solution

The fourth proportional to 143,611.58, 198,117.47 and 92,640.74 is: 127,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,611.58 : 198,117.47 = 92,640.74 : x
  2. Step 2: Convert to fraction form
    143,611.58/198,117.47 = 92,640.74/x
  3. Step 3: Cross multiply
    143,611.58x = 198,117.47 × 92,640.74
  4. Step 4: Simplify right side
    143,611.58x = 18,353,749,515.83
  5. Step 5: Solve for x
    x = 18,353,749,515.83/143,611.58
  6. Step 6: Final answer
    x = 127,801.32

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1.5x scale

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.