Home / 155,293.84-214,290.66-90,778.18

Finding the Fourth Proportional to 155,293.84, 214,290.66 and 90,778.18

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Solution

The fourth proportional to 155,293.84, 214,290.66 and 90,778.18 is: 125,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,293.84 : 214,290.66 = 90,778.18 : x
  2. Step 2: Convert to fraction form
    155,293.84/214,290.66 = 90,778.18/x
  3. Step 3: Cross multiply
    155,293.84x = 214,290.66 × 90,778.18
  4. Step 4: Simplify right side
    155,293.84x = 19,452,916,105.80
  5. Step 5: Solve for x
    x = 19,452,916,105.80/155,293.84
  6. Step 6: Final answer
    x = 125,265.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.