Home / 155,705.36-233,376.60-71,474.42

Finding the Fourth Proportional to 155,705.36, 233,376.60 and 71,474.42

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Solution

The fourth proportional to 155,705.36, 233,376.60 and 71,474.42 is: 107,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,705.36 : 233,376.60 = 71,474.42 : x
  2. Step 2: Convert to fraction form
    155,705.36/233,376.60 = 71,474.42/x
  3. Step 3: Cross multiply
    155,705.36x = 233,376.60 × 71,474.42
  4. Step 4: Simplify right side
    155,705.36x = 16,680,457,126.57
  5. Step 5: Solve for x
    x = 16,680,457,126.57/155,705.36
  6. Step 6: Final answer
    x = 107,128.34

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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.