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Finding the Fourth Proportional to 105,429.70, 158,119.70 and 38,833.66

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Solution

The fourth proportional to 105,429.70, 158,119.70 and 38,833.66 is: 58,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,429.70 : 158,119.70 = 38,833.66 : x
  2. Step 2: Convert to fraction form
    105,429.70/158,119.70 = 38,833.66/x
  3. Step 3: Cross multiply
    105,429.70x = 158,119.70 × 38,833.66
  4. Step 4: Simplify right side
    105,429.70x = 6,140,366,370.89
  5. Step 5: Solve for x
    x = 6,140,366,370.89/105,429.70
  6. Step 6: Final answer
    x = 58,241.34

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1.5x scale

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.