Home / 130,682.20-195,731.70-100,866.10

Finding the Fourth Proportional to 130,682.20, 195,731.70 and 100,866.10

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Solution

The fourth proportional to 130,682.20, 195,731.70 and 100,866.10 is: 151,074.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,682.20 : 195,731.70 = 100,866.10 : x
  2. Step 2: Convert to fraction form
    130,682.20/195,731.70 = 100,866.10/x
  3. Step 3: Cross multiply
    130,682.20x = 195,731.70 × 100,866.10
  4. Step 4: Simplify right side
    130,682.20x = 19,742,693,225.37
  5. Step 5: Solve for x
    x = 19,742,693,225.37/130,682.20
  6. Step 6: Final answer
    x = 151,074.08

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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.