Home / 199,400.05-275,165.35-118,785.81

Finding the Fourth Proportional to 199,400.05, 275,165.35 and 118,785.81

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Solution

The fourth proportional to 199,400.05, 275,165.35 and 118,785.81 is: 163,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,400.05 : 275,165.35 = 118,785.81 : x
  2. Step 2: Convert to fraction form
    199,400.05/275,165.35 = 118,785.81/x
  3. Step 3: Cross multiply
    199,400.05x = 275,165.35 × 118,785.81
  4. Step 4: Simplify right side
    199,400.05x = 32,685,738,686.72
  5. Step 5: Solve for x
    x = 32,685,738,686.72/199,400.05
  6. Step 6: Final answer
    x = 163,920.42

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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.