Home / 209,811.96-314,992.28-124,578.36

Finding the Fourth Proportional to 209,811.96, 314,992.28 and 124,578.36

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Solution

The fourth proportional to 209,811.96, 314,992.28 and 124,578.36 is: 187,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,811.96 : 314,992.28 = 124,578.36 : x
  2. Step 2: Convert to fraction form
    209,811.96/314,992.28 = 124,578.36/x
  3. Step 3: Cross multiply
    209,811.96x = 314,992.28 × 124,578.36
  4. Step 4: Simplify right side
    209,811.96x = 39,241,221,655.06
  5. Step 5: Solve for x
    x = 39,241,221,655.06/209,811.96
  6. Step 6: Final answer
    x = 187,030.43

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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.