Home / 103,683.85-155,520.29-51,075.56

Finding the Fourth Proportional to 103,683.85, 155,520.29 and 51,075.56

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Solution

The fourth proportional to 103,683.85, 155,520.29 and 51,075.56 is: 76,610.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,683.85 : 155,520.29 = 51,075.56 : x
  2. Step 2: Convert to fraction form
    103,683.85/155,520.29 = 51,075.56/x
  3. Step 3: Cross multiply
    103,683.85x = 155,520.29 × 51,075.56
  4. Step 4: Simplify right side
    103,683.85x = 7,943,286,419.60
  5. Step 5: Solve for x
    x = 7,943,286,419.60/103,683.85
  6. Step 6: Final answer
    x = 76,610.64

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1.5x scale

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.