Home / 209,570.09-314,355.23-69,328.71

Finding the Fourth Proportional to 209,570.09, 314,355.23 and 69,328.71

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Solution

The fourth proportional to 209,570.09, 314,355.23 and 69,328.71 is: 103,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,570.09 : 314,355.23 = 69,328.71 : x
  2. Step 2: Convert to fraction form
    209,570.09/314,355.23 = 69,328.71/x
  3. Step 3: Cross multiply
    209,570.09x = 314,355.23 × 69,328.71
  4. Step 4: Simplify right side
    209,570.09x = 21,793,842,750.98
  5. Step 5: Solve for x
    x = 21,793,842,750.98/209,570.09
  6. Step 6: Final answer
    x = 103,993.10

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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.