Home / 209,091.06-313,330.40-103,699.54

Finding the Fourth Proportional to 209,091.06, 313,330.40 and 103,699.54

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Solution

The fourth proportional to 209,091.06, 313,330.40 and 103,699.54 is: 155,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,091.06 : 313,330.40 = 103,699.54 : x
  2. Step 2: Convert to fraction form
    209,091.06/313,330.40 = 103,699.54/x
  3. Step 3: Cross multiply
    209,091.06x = 313,330.40 × 103,699.54
  4. Step 4: Simplify right side
    209,091.06x = 32,492,218,348.02
  5. Step 5: Solve for x
    x = 32,492,218,348.02/209,091.06
  6. Step 6: Final answer
    x = 155,397.45

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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.