Home / 130,499.10-180,080.23-76,773.73

Finding the Fourth Proportional to 130,499.10, 180,080.23 and 76,773.73

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Solution

The fourth proportional to 130,499.10, 180,080.23 and 76,773.73 is: 105,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,499.10 : 180,080.23 = 76,773.73 : x
  2. Step 2: Convert to fraction form
    130,499.10/180,080.23 = 76,773.73/x
  3. Step 3: Cross multiply
    130,499.10x = 180,080.23 × 76,773.73
  4. Step 4: Simplify right side
    130,499.10x = 13,825,430,956.36
  5. Step 5: Solve for x
    x = 13,825,430,956.36/130,499.10
  6. Step 6: Final answer
    x = 105,942.73

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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.