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Finding the Fourth Proportional to 188,648.08, 260,328.92 and 103,765.14

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Solution

The fourth proportional to 188,648.08, 260,328.92 and 103,765.14 is: 143,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,648.08 : 260,328.92 = 103,765.14 : x
  2. Step 2: Convert to fraction form
    188,648.08/260,328.92 = 103,765.14/x
  3. Step 3: Cross multiply
    188,648.08x = 260,328.92 × 103,765.14
  4. Step 4: Simplify right side
    188,648.08x = 27,013,066,829.85
  5. Step 5: Solve for x
    x = 27,013,066,829.85/188,648.08
  6. Step 6: Final answer
    x = 143,192.91

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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.