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Finding the Fourth Proportional to 188,990.58, 260,762.19 and 107,301.07

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Solution

The fourth proportional to 188,990.58, 260,762.19 and 107,301.07 is: 148,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,990.58 : 260,762.19 = 107,301.07 : x
  2. Step 2: Convert to fraction form
    188,990.58/260,762.19 = 107,301.07/x
  3. Step 3: Cross multiply
    188,990.58x = 260,762.19 × 107,301.07
  4. Step 4: Simplify right side
    188,990.58x = 27,980,061,926.12
  5. Step 5: Solve for x
    x = 27,980,061,926.12/188,990.58
  6. Step 6: Final answer
    x = 148,050.03

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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.