Home / 110,096.40-151,996.08-72,480

Finding the Fourth Proportional to 110,096.40, 151,996.08 and 72,480

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Solution

The fourth proportional to 110,096.40, 151,996.08 and 72,480 is: 100,063.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,096.40 : 151,996.08 = 72,480 : x
  2. Step 2: Convert to fraction form
    110,096.40/151,996.08 = 72,480/x
  3. Step 3: Cross multiply
    110,096.40x = 151,996.08 × 72,480
  4. Step 4: Simplify right side
    110,096.40x = 11,016,675,878.40
  5. Step 5: Solve for x
    x = 11,016,675,878.40/110,096.40
  6. Step 6: Final answer
    x = 100,063.91

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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.