Home / 231,740.70-347,643.45-98,619.90

Finding the Fourth Proportional to 231,740.70, 347,643.45 and 98,619.90

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Solution

The fourth proportional to 231,740.70, 347,643.45 and 98,619.90 is: 147,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,740.70 : 347,643.45 = 98,619.90 : x
  2. Step 2: Convert to fraction form
    231,740.70/347,643.45 = 98,619.90/x
  3. Step 3: Cross multiply
    231,740.70x = 347,643.45 × 98,619.90
  4. Step 4: Simplify right side
    231,740.70x = 34,284,562,274.66
  5. Step 5: Solve for x
    x = 34,284,562,274.66/231,740.70
  6. Step 6: Final answer
    x = 147,943.64

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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.