Home / 395,100.89-592,591.19-128,860.98

Finding the Fourth Proportional to 395,100.89, 592,591.19 and 128,860.98

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Solution

The fourth proportional to 395,100.89, 592,591.19 and 128,860.98 is: 193,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,100.89 : 592,591.19 = 128,860.98 : x
  2. Step 2: Convert to fraction form
    395,100.89/592,591.19 = 128,860.98/x
  3. Step 3: Cross multiply
    395,100.89x = 592,591.19 × 128,860.98
  4. Step 4: Simplify right side
    395,100.89x = 76,361,880,838.46
  5. Step 5: Solve for x
    x = 76,361,880,838.46/395,100.89
  6. Step 6: Final answer
    x = 193,271.85

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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.