Home / 154,651.44-213,521.76-118,777.28

Finding the Fourth Proportional to 154,651.44, 213,521.76 and 118,777.28

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Solution

The fourth proportional to 154,651.44, 213,521.76 and 118,777.28 is: 163,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,651.44 : 213,521.76 = 118,777.28 : x
  2. Step 2: Convert to fraction form
    154,651.44/213,521.76 = 118,777.28/x
  3. Step 3: Cross multiply
    154,651.44x = 213,521.76 × 118,777.28
  4. Step 4: Simplify right side
    154,651.44x = 25,361,533,873.61
  5. Step 5: Solve for x
    x = 25,361,533,873.61/154,651.44
  6. Step 6: Final answer
    x = 163,991.58

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1.5x scale

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.