Home / 103,723.60-155,239.80-95,429.20

Finding the Fourth Proportional to 103,723.60, 155,239.80 and 95,429.20

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Solution

The fourth proportional to 103,723.60, 155,239.80 and 95,429.20 is: 142,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,723.60 : 155,239.80 = 95,429.20 : x
  2. Step 2: Convert to fraction form
    103,723.60/155,239.80 = 95,429.20/x
  3. Step 3: Cross multiply
    103,723.60x = 155,239.80 × 95,429.20
  4. Step 4: Simplify right side
    103,723.60x = 14,814,409,922.16
  5. Step 5: Solve for x
    x = 14,814,409,922.16/103,723.60
  6. Step 6: Final answer
    x = 142,825.84

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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.