Home / 155,759.61-214,948.08-84,139.62

Finding the Fourth Proportional to 155,759.61, 214,948.08 and 84,139.62

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Solution

The fourth proportional to 155,759.61, 214,948.08 and 84,139.62 is: 116,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,759.61 : 214,948.08 = 84,139.62 : x
  2. Step 2: Convert to fraction form
    155,759.61/214,948.08 = 84,139.62/x
  3. Step 3: Cross multiply
    155,759.61x = 214,948.08 × 84,139.62
  4. Step 4: Simplify right side
    155,759.61x = 18,085,649,770.93
  5. Step 5: Solve for x
    x = 18,085,649,770.93/155,759.61
  6. Step 6: Final answer
    x = 116,112.58

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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.