Home / 115,333.20-158,923.62-85,070.66

Finding the Fourth Proportional to 115,333.20, 158,923.62 and 85,070.66

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Solution

The fourth proportional to 115,333.20, 158,923.62 and 85,070.66 is: 117,223.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,333.20 : 158,923.62 = 85,070.66 : x
  2. Step 2: Convert to fraction form
    115,333.20/158,923.62 = 85,070.66/x
  3. Step 3: Cross multiply
    115,333.20x = 158,923.62 × 85,070.66
  4. Step 4: Simplify right side
    115,333.20x = 13,519,736,448.37
  5. Step 5: Solve for x
    x = 13,519,736,448.37/115,333.20
  6. Step 6: Final answer
    x = 117,223.28

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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.