Home / 154,634.76-213,376.02-90,949.32

Finding the Fourth Proportional to 154,634.76, 213,376.02 and 90,949.32

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Solution

The fourth proportional to 154,634.76, 213,376.02 and 90,949.32 is: 125,498.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,634.76 : 213,376.02 = 90,949.32 : x
  2. Step 2: Convert to fraction form
    154,634.76/213,376.02 = 90,949.32/x
  3. Step 3: Cross multiply
    154,634.76x = 213,376.02 × 90,949.32
  4. Step 4: Simplify right side
    154,634.76x = 19,406,403,923.31
  5. Step 5: Solve for x
    x = 19,406,403,923.31/154,634.76
  6. Step 6: Final answer
    x = 125,498.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.