Home / 111,158,144.47-166,737,617.67-78,711,899.95

Finding the Fourth Proportional to 111,158,144.47, 166,737,617.67 and 78,711,899.95

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Solution

The fourth proportional to 111,158,144.47, 166,737,617.67 and 78,711,899.95 is: 118,068,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,158,144.47 : 166,737,617.67 = 78,711,899.95 : x
  2. Step 2: Convert to fraction form
    111,158,144.47/166,737,617.67 = 78,711,899.95/x
  3. Step 3: Cross multiply
    111,158,144.47x = 166,737,617.67 × 78,711,899.95
  4. Step 4: Simplify right side
    111,158,144.47x = 13,124,234,679,942,392
  5. Step 5: Solve for x
    x = 13,124,234,679,942,392/111,158,144.47
  6. Step 6: Final answer
    x = 118,068,133.85

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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.