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Finding the Fourth Proportional to 188,809.83, 260,559.32 and 103,927.50

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Solution

The fourth proportional to 188,809.83, 260,559.32 and 103,927.50 is: 143,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,809.83 : 260,559.32 = 103,927.50 : x
  2. Step 2: Convert to fraction form
    188,809.83/260,559.32 = 103,927.50/x
  3. Step 3: Cross multiply
    188,809.83x = 260,559.32 × 103,927.50
  4. Step 4: Simplify right side
    188,809.83x = 27,079,278,209.66
  5. Step 5: Solve for x
    x = 27,079,278,209.66/188,809.83
  6. Step 6: Final answer
    x = 143,420.91

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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.