Home / 209,968.80-314,953.20-69,727.43

Finding the Fourth Proportional to 209,968.80, 314,953.20 and 69,727.43

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Solution

The fourth proportional to 209,968.80, 314,953.20 and 69,727.43 is: 104,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,968.80 : 314,953.20 = 69,727.43 : x
  2. Step 2: Convert to fraction form
    209,968.80/314,953.20 = 69,727.43/x
  3. Step 3: Cross multiply
    209,968.80x = 314,953.20 × 69,727.43
  4. Step 4: Simplify right side
    209,968.80x = 21,960,875,631.51
  5. Step 5: Solve for x
    x = 21,960,875,631.51/209,968.80
  6. Step 6: Final answer
    x = 104,591.14

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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.