Home / 144,135.26-216,242.54-69,318

Finding the Fourth Proportional to 144,135.26, 216,242.54 and 69,318

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Solution

The fourth proportional to 144,135.26, 216,242.54 and 69,318 is: 103,996.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,135.26 : 216,242.54 = 69,318 : x
  2. Step 2: Convert to fraction form
    144,135.26/216,242.54 = 69,318/x
  3. Step 3: Cross multiply
    144,135.26x = 216,242.54 × 69,318
  4. Step 4: Simplify right side
    144,135.26x = 14,989,500,387.72
  5. Step 5: Solve for x
    x = 14,989,500,387.72/144,135.26
  6. Step 6: Final answer
    x = 103,996.07

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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.