Home / 115,984.13-160,055.39-68,240.57

Finding the Fourth Proportional to 115,984.13, 160,055.39 and 68,240.57

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Solution

The fourth proportional to 115,984.13, 160,055.39 and 68,240.57 is: 94,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,984.13 : 160,055.39 = 68,240.57 : x
  2. Step 2: Convert to fraction form
    115,984.13/160,055.39 = 68,240.57/x
  3. Step 3: Cross multiply
    115,984.13x = 160,055.39 × 68,240.57
  4. Step 4: Simplify right side
    115,984.13x = 10,922,270,415.50
  5. Step 5: Solve for x
    x = 10,922,270,415.50/115,984.13
  6. Step 6: Final answer
    x = 94,170.39

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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.