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Finding the Fourth Proportional to 139,959.77, 209,939.66 and 46,465.52

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Solution

The fourth proportional to 139,959.77, 209,939.66 and 46,465.52 is: 69,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,959.77 : 209,939.66 = 46,465.52 : x
  2. Step 2: Convert to fraction form
    139,959.77/209,939.66 = 46,465.52/x
  3. Step 3: Cross multiply
    139,959.77x = 209,939.66 × 46,465.52
  4. Step 4: Simplify right side
    139,959.77x = 9,754,955,470.52
  5. Step 5: Solve for x
    x = 9,754,955,470.52/139,959.77
  6. Step 6: Final answer
    x = 69,698.28

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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.