Home / 112,623,928.50-155,421,021.42-61,115,704.50

Finding the Fourth Proportional to 112,623,928.50, 155,421,021.42 and 61,115,704.50

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Solution

The fourth proportional to 112,623,928.50, 155,421,021.42 and 61,115,704.50 is: 84,339,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,623,928.50 : 155,421,021.42 = 61,115,704.50 : x
  2. Step 2: Convert to fraction form
    112,623,928.50/155,421,021.42 = 61,115,704.50/x
  3. Step 3: Cross multiply
    112,623,928.50x = 155,421,021.42 × 61,115,704.50
  4. Step 4: Simplify right side
    112,623,928.50x = 9,498,665,218,192,890
  5. Step 5: Solve for x
    x = 9,498,665,218,192,890/112,623,928.50
  6. Step 6: Final answer
    x = 84,339,672.26

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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.