Home / 154,648.60-213,517.86-118,774.50

Finding the Fourth Proportional to 154,648.60, 213,517.86 and 118,774.50

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Solution

The fourth proportional to 154,648.60, 213,517.86 and 118,774.50 is: 163,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,648.60 : 213,517.86 = 118,774.50 : x
  2. Step 2: Convert to fraction form
    154,648.60/213,517.86 = 118,774.50/x
  3. Step 3: Cross multiply
    154,648.60x = 213,517.86 × 118,774.50
  4. Step 4: Simplify right side
    154,648.60x = 25,360,477,062.57
  5. Step 5: Solve for x
    x = 25,360,477,062.57/154,648.60
  6. Step 6: Final answer
    x = 163,987.76

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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.