Home / 115,002.68-158,683.88-105,701.28

Finding the Fourth Proportional to 115,002.68, 158,683.88 and 105,701.28

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Solution

The fourth proportional to 115,002.68, 158,683.88 and 105,701.28 is: 145,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,002.68 : 158,683.88 = 105,701.28 : x
  2. Step 2: Convert to fraction form
    115,002.68/158,683.88 = 105,701.28/x
  3. Step 3: Cross multiply
    115,002.68x = 158,683.88 × 105,701.28
  4. Step 4: Simplify right side
    115,002.68x = 16,773,089,231.37
  5. Step 5: Solve for x
    x = 16,773,089,231.37/115,002.68
  6. Step 6: Final answer
    x = 145,849.55

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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.