Home / 103,629.35-155,444.03-91,965.35

Finding the Fourth Proportional to 103,629.35, 155,444.03 and 91,965.35

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Solution

The fourth proportional to 103,629.35, 155,444.03 and 91,965.35 is: 137,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.35 : 155,444.03 = 91,965.35 : x
  2. Step 2: Convert to fraction form
    103,629.35/155,444.03 = 91,965.35/x
  3. Step 3: Cross multiply
    103,629.35x = 155,444.03 × 91,965.35
  4. Step 4: Simplify right side
    103,629.35x = 14,295,464,624.36
  5. Step 5: Solve for x
    x = 14,295,464,624.36/103,629.35
  6. Step 6: Final answer
    x = 137,948.03

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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.