Home / 105,622.81-158,502.96-45,709.72

Finding the Fourth Proportional to 105,622.81, 158,502.96 and 45,709.72

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Solution

The fourth proportional to 105,622.81, 158,502.96 and 45,709.72 is: 68,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,622.81 : 158,502.96 = 45,709.72 : x
  2. Step 2: Convert to fraction form
    105,622.81/158,502.96 = 45,709.72/x
  3. Step 3: Cross multiply
    105,622.81x = 158,502.96 × 45,709.72
  4. Step 4: Simplify right side
    105,622.81x = 7,245,125,524.51
  5. Step 5: Solve for x
    x = 7,245,125,524.51/105,622.81
  6. Step 6: Final answer
    x = 68,594.33

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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.