Home / 115,063.00-158,705.14-76,803.25

Finding the Fourth Proportional to 115,063.00, 158,705.14 and 76,803.25

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Solution

The fourth proportional to 115,063.00, 158,705.14 and 76,803.25 is: 105,933.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,063.00 : 158,705.14 = 76,803.25 : x
  2. Step 2: Convert to fraction form
    115,063.00/158,705.14 = 76,803.25/x
  3. Step 3: Cross multiply
    115,063.00x = 158,705.14 × 76,803.25
  4. Step 4: Simplify right side
    115,063.00x = 12,189,070,844.46
  5. Step 5: Solve for x
    x = 12,189,070,844.46/115,063.00
  6. Step 6: Final answer
    x = 105,933.89

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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.