Home / 154,635.12-213,517.08-118,768.32

Finding the Fourth Proportional to 154,635.12, 213,517.08 and 118,768.32

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Solution

The fourth proportional to 154,635.12, 213,517.08 and 118,768.32 is: 163,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,635.12 : 213,517.08 = 118,768.32 : x
  2. Step 2: Convert to fraction form
    154,635.12/213,517.08 = 118,768.32/x
  3. Step 3: Cross multiply
    154,635.12x = 213,517.08 × 118,768.32
  4. Step 4: Simplify right side
    154,635.12x = 25,359,064,882.91
  5. Step 5: Solve for x
    x = 25,359,064,882.91/154,635.12
  6. Step 6: Final answer
    x = 163,992.92

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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.