Home / 100,675.40-151,013.10-30,554.60

Finding the Fourth Proportional to 100,675.40, 151,013.10 and 30,554.60

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Solution

The fourth proportional to 100,675.40, 151,013.10 and 30,554.60 is: 45,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,675.40 : 151,013.10 = 30,554.60 : x
  2. Step 2: Convert to fraction form
    100,675.40/151,013.10 = 30,554.60/x
  3. Step 3: Cross multiply
    100,675.40x = 151,013.10 × 30,554.60
  4. Step 4: Simplify right side
    100,675.40x = 4,614,144,865.26
  5. Step 5: Solve for x
    x = 4,614,144,865.26/100,675.40
  6. Step 6: Final answer
    x = 45,831.90

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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.