Home / 209,109.64-313,664.48-75,965.08

Finding the Fourth Proportional to 209,109.64, 313,664.48 and 75,965.08

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Solution

The fourth proportional to 209,109.64, 313,664.48 and 75,965.08 is: 113,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,109.64 : 313,664.48 = 75,965.08 : x
  2. Step 2: Convert to fraction form
    209,109.64/313,664.48 = 75,965.08/x
  3. Step 3: Cross multiply
    209,109.64x = 313,664.48 × 75,965.08
  4. Step 4: Simplify right side
    209,109.64x = 23,827,547,316.36
  5. Step 5: Solve for x
    x = 23,827,547,316.36/209,109.64
  6. Step 6: Final answer
    x = 113,947.63

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1.5x scale

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.