Home / 91,186.10-136,765.46-28,848.50

Finding the Fourth Proportional to 91,186.10, 136,765.46 and 28,848.50

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Solution

The fourth proportional to 91,186.10, 136,765.46 and 28,848.50 is: 43,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,186.10 : 136,765.46 = 28,848.50 : x
  2. Step 2: Convert to fraction form
    91,186.10/136,765.46 = 28,848.50/x
  3. Step 3: Cross multiply
    91,186.10x = 136,765.46 × 28,848.50
  4. Step 4: Simplify right side
    91,186.10x = 3,945,478,372.81
  5. Step 5: Solve for x
    x = 3,945,478,372.81/91,186.10
  6. Step 6: Final answer
    x = 43,268.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.