Home / 205,574.32-308,382.63-77,598.39

Finding the Fourth Proportional to 205,574.32, 308,382.63 and 77,598.39

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Solution

The fourth proportional to 205,574.32, 308,382.63 and 77,598.39 is: 116,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,574.32 : 308,382.63 = 77,598.39 : x
  2. Step 2: Convert to fraction form
    205,574.32/308,382.63 = 77,598.39/x
  3. Step 3: Cross multiply
    205,574.32x = 308,382.63 × 77,598.39
  4. Step 4: Simplify right side
    205,574.32x = 23,929,995,203.97
  5. Step 5: Solve for x
    x = 23,929,995,203.97/205,574.32
  6. Step 6: Final answer
    x = 116,405.57

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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.