Home / 107,138.81-147,853.23-58,745.15

Finding the Fourth Proportional to 107,138.81, 147,853.23 and 58,745.15

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Solution

The fourth proportional to 107,138.81, 147,853.23 and 58,745.15 is: 81,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,138.81 : 147,853.23 = 58,745.15 : x
  2. Step 2: Convert to fraction form
    107,138.81/147,853.23 = 58,745.15/x
  3. Step 3: Cross multiply
    107,138.81x = 147,853.23 × 58,745.15
  4. Step 4: Simplify right side
    107,138.81x = 8,685,659,769.22
  5. Step 5: Solve for x
    x = 8,685,659,769.22/107,138.81
  6. Step 6: Final answer
    x = 81,069.22

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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.