Home / 137,895.03-190,289.12-84,269.79

Finding the Fourth Proportional to 137,895.03, 190,289.12 and 84,269.79

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Solution

The fourth proportional to 137,895.03, 190,289.12 and 84,269.79 is: 116,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,895.03 : 190,289.12 = 84,269.79 : x
  2. Step 2: Convert to fraction form
    137,895.03/190,289.12 = 84,269.79/x
  3. Step 3: Cross multiply
    137,895.03x = 190,289.12 × 84,269.79
  4. Step 4: Simplify right side
    137,895.03x = 16,035,623,760.34
  5. Step 5: Solve for x
    x = 16,035,623,760.34/137,895.03
  6. Step 6: Final answer
    x = 116,288.63

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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.