Home / 145,918.35-218,771.19-98,415.50

Finding the Fourth Proportional to 145,918.35, 218,771.19 and 98,415.50

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Solution

The fourth proportional to 145,918.35, 218,771.19 and 98,415.50 is: 147,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,918.35 : 218,771.19 = 98,415.50 : x
  2. Step 2: Convert to fraction form
    145,918.35/218,771.19 = 98,415.50/x
  3. Step 3: Cross multiply
    145,918.35x = 218,771.19 × 98,415.50
  4. Step 4: Simplify right side
    145,918.35x = 21,530,474,955.59
  5. Step 5: Solve for x
    x = 21,530,474,955.59/145,918.35
  6. Step 6: Final answer
    x = 147,551.52

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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.