Home / 103,524,089.80-155,286,134.70-79,636,217.80

Finding the Fourth Proportional to 103,524,089.80, 155,286,134.70 and 79,636,217.80

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Solution

The fourth proportional to 103,524,089.80, 155,286,134.70 and 79,636,217.80 is: 119,454,326.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,524,089.80 : 155,286,134.70 = 79,636,217.80 : x
  2. Step 2: Convert to fraction form
    103,524,089.80/155,286,134.70 = 79,636,217.80/x
  3. Step 3: Cross multiply
    103,524,089.80x = 155,286,134.70 × 79,636,217.80
  4. Step 4: Simplify right side
    103,524,089.80x = 12,366,400,444,289,336
  5. Step 5: Solve for x
    x = 12,366,400,444,289,336/103,524,089.80
  6. Step 6: Final answer
    x = 119,454,326.70

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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.