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Finding the Fourth Proportional to 188,890.80, 260,675.02 and 104,010.90

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Solution

The fourth proportional to 188,890.80, 260,675.02 and 104,010.90 is: 143,538.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,890.80 : 260,675.02 = 104,010.90 : x
  2. Step 2: Convert to fraction form
    188,890.80/260,675.02 = 104,010.90/x
  3. Step 3: Cross multiply
    188,890.80x = 260,675.02 × 104,010.90
  4. Step 4: Simplify right side
    188,890.80x = 27,113,043,437.72
  5. Step 5: Solve for x
    x = 27,113,043,437.72/188,890.80
  6. Step 6: Final answer
    x = 143,538.19

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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.