Home / 316,629.08-475,048.72-103,403.95

Finding the Fourth Proportional to 316,629.08, 475,048.72 and 103,403.95

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Solution

The fourth proportional to 316,629.08, 475,048.72 and 103,403.95 is: 155,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,629.08 : 475,048.72 = 103,403.95 : x
  2. Step 2: Convert to fraction form
    316,629.08/475,048.72 = 103,403.95/x
  3. Step 3: Cross multiply
    316,629.08x = 475,048.72 × 103,403.95
  4. Step 4: Simplify right side
    316,629.08x = 49,121,913,573.42
  5. Step 5: Solve for x
    x = 49,121,913,573.42/316,629.08
  6. Step 6: Final answer
    x = 155,140.25

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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.