Home / 131,406.10-197,109.15-130,023.70

Finding the Fourth Proportional to 131,406.10, 197,109.15 and 130,023.70

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Solution

The fourth proportional to 131,406.10, 197,109.15 and 130,023.70 is: 195,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,406.10 : 197,109.15 = 130,023.70 : x
  2. Step 2: Convert to fraction form
    131,406.10/197,109.15 = 130,023.70/x
  3. Step 3: Cross multiply
    131,406.10x = 197,109.15 × 130,023.70
  4. Step 4: Simplify right side
    131,406.10x = 25,628,860,986.86
  5. Step 5: Solve for x
    x = 25,628,860,986.86/131,406.10
  6. Step 6: Final answer
    x = 195,035.55

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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.