Home / 188,421.08-260,018.12-103,536.32

Finding the Fourth Proportional to 188,421.08, 260,018.12 and 103,536.32

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Solution

The fourth proportional to 188,421.08, 260,018.12 and 103,536.32 is: 142,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,421.08 : 260,018.12 = 103,536.32 : x
  2. Step 2: Convert to fraction form
    188,421.08/260,018.12 = 103,536.32/x
  3. Step 3: Cross multiply
    188,421.08x = 260,018.12 × 103,536.32
  4. Step 4: Simplify right side
    188,421.08x = 26,921,318,236.87
  5. Step 5: Solve for x
    x = 26,921,318,236.87/188,421.08
  6. Step 6: Final answer
    x = 142,878.49

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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.