Home / 209,815.91-314,998.23-124,582.40

Finding the Fourth Proportional to 209,815.91, 314,998.23 and 124,582.40

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Solution

The fourth proportional to 209,815.91, 314,998.23 and 124,582.40 is: 187,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,815.91 : 314,998.23 = 124,582.40 : x
  2. Step 2: Convert to fraction form
    209,815.91/314,998.23 = 124,582.40/x
  3. Step 3: Cross multiply
    209,815.91x = 314,998.23 × 124,582.40
  4. Step 4: Simplify right side
    209,815.91x = 39,243,235,489.15
  5. Step 5: Solve for x
    x = 39,243,235,489.15/209,815.91
  6. Step 6: Final answer
    x = 187,036.51

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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.