Home / 209,428.58-314,141.42-84,767.78

Finding the Fourth Proportional to 209,428.58, 314,141.42 and 84,767.78

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Solution

The fourth proportional to 209,428.58, 314,141.42 and 84,767.78 is: 127,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,428.58 : 314,141.42 = 84,767.78 : x
  2. Step 2: Convert to fraction form
    209,428.58/314,141.42 = 84,767.78/x
  3. Step 3: Cross multiply
    209,428.58x = 314,141.42 × 84,767.78
  4. Step 4: Simplify right side
    209,428.58x = 26,629,070,779.45
  5. Step 5: Solve for x
    x = 26,629,070,779.45/209,428.58
  6. Step 6: Final answer
    x = 127,151.08

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1.5x scale

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.