Home / 209,766.12-314,643.42-51,991.08

Finding the Fourth Proportional to 209,766.12, 314,643.42 and 51,991.08

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Solution

The fourth proportional to 209,766.12, 314,643.42 and 51,991.08 is: 77,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,766.12 : 314,643.42 = 51,991.08 : x
  2. Step 2: Convert to fraction form
    209,766.12/314,643.42 = 51,991.08/x
  3. Step 3: Cross multiply
    209,766.12x = 314,643.42 × 51,991.08
  4. Step 4: Simplify right side
    209,766.12x = 16,358,651,220.69
  5. Step 5: Solve for x
    x = 16,358,651,220.69/209,766.12
  6. Step 6: Final answer
    x = 77,985.19

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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.