Home / 155,759.08-214,947.42-84,139.12

Finding the Fourth Proportional to 155,759.08, 214,947.42 and 84,139.12

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Solution

The fourth proportional to 155,759.08, 214,947.42 and 84,139.12 is: 116,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,759.08 : 214,947.42 = 84,139.12 : x
  2. Step 2: Convert to fraction form
    155,759.08/214,947.42 = 84,139.12/x
  3. Step 3: Cross multiply
    155,759.08x = 214,947.42 × 84,139.12
  4. Step 4: Simplify right side
    155,759.08x = 18,085,486,765.07
  5. Step 5: Solve for x
    x = 18,085,486,765.07/155,759.08
  6. Step 6: Final answer
    x = 116,111.93

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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.