Home / 99,351.45-148,701.38-54,303.80

Finding the Fourth Proportional to 99,351.45, 148,701.38 and 54,303.80

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Solution

The fourth proportional to 99,351.45, 148,701.38 and 54,303.80 is: 81,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,351.45 : 148,701.38 = 54,303.80 : x
  2. Step 2: Convert to fraction form
    99,351.45/148,701.38 = 54,303.80/x
  3. Step 3: Cross multiply
    99,351.45x = 148,701.38 × 54,303.80
  4. Step 4: Simplify right side
    99,351.45x = 8,075,048,984.22
  5. Step 5: Solve for x
    x = 8,075,048,984.22/99,351.45
  6. Step 6: Final answer
    x = 81,277.62

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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.