Home / 186,002.40-279,003.60-130,015.20

Finding the Fourth Proportional to 186,002.40, 279,003.60 and 130,015.20

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Solution

The fourth proportional to 186,002.40, 279,003.60 and 130,015.20 is: 195,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,002.40 : 279,003.60 = 130,015.20 : x
  2. Step 2: Convert to fraction form
    186,002.40/279,003.60 = 130,015.20/x
  3. Step 3: Cross multiply
    186,002.40x = 279,003.60 × 130,015.20
  4. Step 4: Simplify right side
    186,002.40x = 36,274,708,854.72
  5. Step 5: Solve for x
    x = 36,274,708,854.72/186,002.40
  6. Step 6: Final answer
    x = 195,022.80

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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.