Home / 100,070.06-150,112.85-28,993.70

Finding the Fourth Proportional to 100,070.06, 150,112.85 and 28,993.70

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Solution

The fourth proportional to 100,070.06, 150,112.85 and 28,993.70 is: 43,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,070.06 : 150,112.85 = 28,993.70 : x
  2. Step 2: Convert to fraction form
    100,070.06/150,112.85 = 28,993.70/x
  3. Step 3: Cross multiply
    100,070.06x = 150,112.85 × 28,993.70
  4. Step 4: Simplify right side
    100,070.06x = 4,352,327,169.36
  5. Step 5: Solve for x
    x = 4,352,327,169.36/100,070.06
  6. Step 6: Final answer
    x = 43,492.80

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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.