Home / 316,749.09-475,074.13-103,515.31

Finding the Fourth Proportional to 316,749.09, 475,074.13 and 103,515.31

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Solution

The fourth proportional to 316,749.09, 475,074.13 and 103,515.31 is: 155,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,749.09 : 475,074.13 = 103,515.31 : x
  2. Step 2: Convert to fraction form
    316,749.09/475,074.13 = 103,515.31/x
  3. Step 3: Cross multiply
    316,749.09x = 475,074.13 × 103,515.31
  4. Step 4: Simplify right side
    316,749.09x = 49,177,445,839.93
  5. Step 5: Solve for x
    x = 49,177,445,839.93/316,749.09
  6. Step 6: Final answer
    x = 155,256.79

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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.