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Finding the Fourth Proportional to 188,458.84, 260,088.06 and 107,911.72

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Solution

The fourth proportional to 188,458.84, 260,088.06 and 107,911.72 is: 148,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,458.84 : 260,088.06 = 107,911.72 : x
  2. Step 2: Convert to fraction form
    188,458.84/260,088.06 = 107,911.72/x
  3. Step 3: Cross multiply
    188,458.84x = 260,088.06 × 107,911.72
  4. Step 4: Simplify right side
    188,458.84x = 28,066,549,906.06
  5. Step 5: Solve for x
    x = 28,066,549,906.06/188,458.84
  6. Step 6: Final answer
    x = 148,926.68

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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.