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Finding the Fourth Proportional to 139,561.58, 192,592.86 and 75,897.92

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Solution

The fourth proportional to 139,561.58, 192,592.86 and 75,897.92 is: 104,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,561.58 : 192,592.86 = 75,897.92 : x
  2. Step 2: Convert to fraction form
    139,561.58/192,592.86 = 75,897.92/x
  3. Step 3: Cross multiply
    139,561.58x = 192,592.86 × 75,897.92
  4. Step 4: Simplify right side
    139,561.58x = 14,617,397,480.85
  5. Step 5: Solve for x
    x = 14,617,397,480.85/139,561.58
  6. Step 6: Final answer
    x = 104,737.98

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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.