Home / 105,408.24-145,497.24-69,630

Finding the Fourth Proportional to 105,408.24, 145,497.24 and 69,630

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Solution

The fourth proportional to 105,408.24, 145,497.24 and 69,630 is: 96,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,408.24 : 145,497.24 = 69,630 : x
  2. Step 2: Convert to fraction form
    105,408.24/145,497.24 = 69,630/x
  3. Step 3: Cross multiply
    105,408.24x = 145,497.24 × 69,630
  4. Step 4: Simplify right side
    105,408.24x = 10,130,972,821.20
  5. Step 5: Solve for x
    x = 10,130,972,821.20/105,408.24
  6. Step 6: Final answer
    x = 96,111.77

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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.