Home / 209,987.12-314,863.83-124,632.66

Finding the Fourth Proportional to 209,987.12, 314,863.83 and 124,632.66

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Solution

The fourth proportional to 209,987.12, 314,863.83 and 124,632.66 is: 186,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,987.12 : 314,863.83 = 124,632.66 : x
  2. Step 2: Convert to fraction form
    209,987.12/314,863.83 = 124,632.66/x
  3. Step 3: Cross multiply
    209,987.12x = 314,863.83 × 124,632.66
  4. Step 4: Simplify right side
    209,987.12x = 39,242,316,670.69
  5. Step 5: Solve for x
    x = 39,242,316,670.69/209,987.12
  6. Step 6: Final answer
    x = 186,879.64

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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.