Home / 209,826.30-314,870.67-85,167.30

Finding the Fourth Proportional to 209,826.30, 314,870.67 and 85,167.30

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Solution

The fourth proportional to 209,826.30, 314,870.67 and 85,167.30 is: 127,804.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,826.30 : 314,870.67 = 85,167.30 : x
  2. Step 2: Convert to fraction form
    209,826.30/314,870.67 = 85,167.30/x
  3. Step 3: Cross multiply
    209,826.30x = 314,870.67 × 85,167.30
  4. Step 4: Simplify right side
    209,826.30x = 26,816,684,813.09
  5. Step 5: Solve for x
    x = 26,816,684,813.09/209,826.30
  6. Step 6: Final answer
    x = 127,804.21

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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.