Home / 188,416.48-260,015.60-103,535.20

Finding the Fourth Proportional to 188,416.48, 260,015.60 and 103,535.20

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Solution

The fourth proportional to 188,416.48, 260,015.60 and 103,535.20 is: 142,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,416.48 : 260,015.60 = 103,535.20 : x
  2. Step 2: Convert to fraction form
    188,416.48/260,015.60 = 103,535.20/x
  3. Step 3: Cross multiply
    188,416.48x = 260,015.60 × 103,535.20
  4. Step 4: Simplify right side
    188,416.48x = 26,920,767,149.12
  5. Step 5: Solve for x
    x = 26,920,767,149.12/188,416.48
  6. Step 6: Final answer
    x = 142,879.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.