Home / 130,960.72-180,720.96-80,058.70

Finding the Fourth Proportional to 130,960.72, 180,720.96 and 80,058.70

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Solution

The fourth proportional to 130,960.72, 180,720.96 and 80,058.70 is: 110,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,960.72 : 180,720.96 = 80,058.70 : x
  2. Step 2: Convert to fraction form
    130,960.72/180,720.96 = 80,058.70/x
  3. Step 3: Cross multiply
    130,960.72x = 180,720.96 × 80,058.70
  4. Step 4: Simplify right side
    130,960.72x = 14,468,285,120.35
  5. Step 5: Solve for x
    x = 14,468,285,120.35/130,960.72
  6. Step 6: Final answer
    x = 110,478.05

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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.