Home / 209,259.09-313,884.48-69,017.70

Finding the Fourth Proportional to 209,259.09, 313,884.48 and 69,017.70

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Solution

The fourth proportional to 209,259.09, 313,884.48 and 69,017.70 is: 103,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,259.09 : 313,884.48 = 69,017.70 : x
  2. Step 2: Convert to fraction form
    209,259.09/313,884.48 = 69,017.70/x
  3. Step 3: Cross multiply
    209,259.09x = 313,884.48 × 69,017.70
  4. Step 4: Simplify right side
    209,259.09x = 21,663,584,875.30
  5. Step 5: Solve for x
    x = 21,663,584,875.30/209,259.09
  6. Step 6: Final answer
    x = 103,525.18

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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.