Home / 115,090.80-158,833.28-69,770.69

Finding the Fourth Proportional to 115,090.80, 158,833.28 and 69,770.69

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Solution

The fourth proportional to 115,090.80, 158,833.28 and 69,770.69 is: 96,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,090.80 : 158,833.28 = 69,770.69 : x
  2. Step 2: Convert to fraction form
    115,090.80/158,833.28 = 69,770.69/x
  3. Step 3: Cross multiply
    115,090.80x = 158,833.28 × 69,770.69
  4. Step 4: Simplify right side
    115,090.80x = 11,081,908,112.07
  5. Step 5: Solve for x
    x = 11,081,908,112.07/115,090.80
  6. Step 6: Final answer
    x = 96,288.39

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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.