Home / 105,967.23-146,364.15-79,228.32

Finding the Fourth Proportional to 105,967.23, 146,364.15 and 79,228.32

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Solution

The fourth proportional to 105,967.23, 146,364.15 and 79,228.32 is: 109,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,967.23 : 146,364.15 = 79,228.32 : x
  2. Step 2: Convert to fraction form
    105,967.23/146,364.15 = 79,228.32/x
  3. Step 3: Cross multiply
    105,967.23x = 146,364.15 × 79,228.32
  4. Step 4: Simplify right side
    105,967.23x = 11,596,185,712.73
  5. Step 5: Solve for x
    x = 11,596,185,712.73/105,967.23
  6. Step 6: Final answer
    x = 109,431.81

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1.5x scale

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.