Home / 202,030.05-278,788.95-111,381.33

Finding the Fourth Proportional to 202,030.05, 278,788.95 and 111,381.33

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Solution

The fourth proportional to 202,030.05, 278,788.95 and 111,381.33 is: 153,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,030.05 : 278,788.95 = 111,381.33 : x
  2. Step 2: Convert to fraction form
    202,030.05/278,788.95 = 111,381.33/x
  3. Step 3: Cross multiply
    202,030.05x = 278,788.95 × 111,381.33
  4. Step 4: Simplify right side
    202,030.05x = 31,051,884,040.30
  5. Step 5: Solve for x
    x = 31,051,884,040.30/202,030.05
  6. Step 6: Final answer
    x = 153,699.33

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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.