Home / 113,186.10-155,999.10-82,907.07

Finding the Fourth Proportional to 113,186.10, 155,999.10 and 82,907.07

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Solution

The fourth proportional to 113,186.10, 155,999.10 and 82,907.07 is: 114,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,186.10 : 155,999.10 = 82,907.07 : x
  2. Step 2: Convert to fraction form
    113,186.10/155,999.10 = 82,907.07/x
  3. Step 3: Cross multiply
    113,186.10x = 155,999.10 × 82,907.07
  4. Step 4: Simplify right side
    113,186.10x = 12,933,428,303.64
  5. Step 5: Solve for x
    x = 12,933,428,303.64/113,186.10
  6. Step 6: Final answer
    x = 114,266.93

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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.