Home / 121,554.40-182,252.40-109,112.80

Finding the Fourth Proportional to 121,554.40, 182,252.40 and 109,112.80

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Solution

The fourth proportional to 121,554.40, 182,252.40 and 109,112.80 is: 163,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,554.40 : 182,252.40 = 109,112.80 : x
  2. Step 2: Convert to fraction form
    121,554.40/182,252.40 = 109,112.80/x
  3. Step 3: Cross multiply
    121,554.40x = 182,252.40 × 109,112.80
  4. Step 4: Simplify right side
    121,554.40x = 19,886,069,670.72
  5. Step 5: Solve for x
    x = 19,886,069,670.72/121,554.40
  6. Step 6: Final answer
    x = 163,598.11

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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.