Home / 209,914.61-314,873.34-76,740.08

Finding the Fourth Proportional to 209,914.61, 314,873.34 and 76,740.08

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Solution

The fourth proportional to 209,914.61, 314,873.34 and 76,740.08 is: 115,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,914.61 : 314,873.34 = 76,740.08 : x
  2. Step 2: Convert to fraction form
    209,914.61/314,873.34 = 76,740.08/x
  3. Step 3: Cross multiply
    209,914.61x = 314,873.34 × 76,740.08
  4. Step 4: Simplify right side
    209,914.61x = 24,163,404,917.77
  5. Step 5: Solve for x
    x = 24,163,404,917.77/209,914.61
  6. Step 6: Final answer
    x = 115,110.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.