Home / 99,075.69-148,359.78-54,653.04

Finding the Fourth Proportional to 99,075.69, 148,359.78 and 54,653.04

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Solution

The fourth proportional to 99,075.69, 148,359.78 and 54,653.04 is: 81,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,075.69 : 148,359.78 = 54,653.04 : x
  2. Step 2: Convert to fraction form
    99,075.69/148,359.78 = 54,653.04/x
  3. Step 3: Cross multiply
    99,075.69x = 148,359.78 × 54,653.04
  4. Step 4: Simplify right side
    99,075.69x = 8,108,312,990.73
  5. Step 5: Solve for x
    x = 8,108,312,990.73/99,075.69
  6. Step 6: Final answer
    x = 81,839.58

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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.