Home / 102,189.21-153,315.03-52,304.66

Finding the Fourth Proportional to 102,189.21, 153,315.03 and 52,304.66

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Solution

The fourth proportional to 102,189.21, 153,315.03 and 52,304.66 is: 78,472.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,189.21 : 153,315.03 = 52,304.66 : x
  2. Step 2: Convert to fraction form
    102,189.21/153,315.03 = 52,304.66/x
  3. Step 3: Cross multiply
    102,189.21x = 153,315.03 × 52,304.66
  4. Step 4: Simplify right side
    102,189.21x = 8,019,089,750.46
  5. Step 5: Solve for x
    x = 8,019,089,750.46/102,189.21
  6. Step 6: Final answer
    x = 78,472.96

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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.