Home / 103,698.08-155,525.85-28,799.40

Finding the Fourth Proportional to 103,698.08, 155,525.85 and 28,799.40

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Solution

The fourth proportional to 103,698.08, 155,525.85 and 28,799.40 is: 43,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,698.08 : 155,525.85 = 28,799.40 : x
  2. Step 2: Convert to fraction form
    103,698.08/155,525.85 = 28,799.40/x
  3. Step 3: Cross multiply
    103,698.08x = 155,525.85 × 28,799.40
  4. Step 4: Simplify right side
    103,698.08x = 4,479,051,164.49
  5. Step 5: Solve for x
    x = 4,479,051,164.49/103,698.08
  6. Step 6: Final answer
    x = 43,193.19

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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.