Home / 115,998.57-160,070.45-68,242.69

Finding the Fourth Proportional to 115,998.57, 160,070.45 and 68,242.69

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Solution

The fourth proportional to 115,998.57, 160,070.45 and 68,242.69 is: 94,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,998.57 : 160,070.45 = 68,242.69 : x
  2. Step 2: Convert to fraction form
    115,998.57/160,070.45 = 68,242.69/x
  3. Step 3: Cross multiply
    115,998.57x = 160,070.45 × 68,242.69
  4. Step 4: Simplify right side
    115,998.57x = 10,923,638,097.51
  5. Step 5: Solve for x
    x = 10,923,638,097.51/115,998.57
  6. Step 6: Final answer
    x = 94,170.45

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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.