Home / 105,909.28-146,157.35-58,163.65

Finding the Fourth Proportional to 105,909.28, 146,157.35 and 58,163.65

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Solution

The fourth proportional to 105,909.28, 146,157.35 and 58,163.65 is: 80,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,909.28 : 146,157.35 = 58,163.65 : x
  2. Step 2: Convert to fraction form
    105,909.28/146,157.35 = 58,163.65/x
  3. Step 3: Cross multiply
    105,909.28x = 146,157.35 × 58,163.65
  4. Step 4: Simplify right side
    105,909.28x = 8,501,045,361.63
  5. Step 5: Solve for x
    x = 8,501,045,361.63/105,909.28
  6. Step 6: Final answer
    x = 80,267.24

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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.