Home / 202,030.11-278,834.45-121,539.02

Finding the Fourth Proportional to 202,030.11, 278,834.45 and 121,539.02

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Solution

The fourth proportional to 202,030.11, 278,834.45 and 121,539.02 is: 167,743.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,030.11 : 278,834.45 = 121,539.02 : x
  2. Step 2: Convert to fraction form
    202,030.11/278,834.45 = 121,539.02/x
  3. Step 3: Cross multiply
    202,030.11x = 278,834.45 × 121,539.02
  4. Step 4: Simplify right side
    202,030.11x = 33,889,263,793.37
  5. Step 5: Solve for x
    x = 33,889,263,793.37/202,030.11
  6. Step 6: Final answer
    x = 167,743.63

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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.