Home / 130,003.90-195,005.85-109,008.70

Finding the Fourth Proportional to 130,003.90, 195,005.85 and 109,008.70

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Solution

The fourth proportional to 130,003.90, 195,005.85 and 109,008.70 is: 163,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,003.90 : 195,005.85 = 109,008.70 : x
  2. Step 2: Convert to fraction form
    130,003.90/195,005.85 = 109,008.70/x
  3. Step 3: Cross multiply
    130,003.90x = 195,005.85 × 109,008.70
  4. Step 4: Simplify right side
    130,003.90x = 21,257,334,200.90
  5. Step 5: Solve for x
    x = 21,257,334,200.90/130,003.90
  6. Step 6: Final answer
    x = 163,513.05

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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.