Home / 142,784.40-214,316.04-119,242.56

Finding the Fourth Proportional to 142,784.40, 214,316.04 and 119,242.56

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Solution

The fourth proportional to 142,784.40, 214,316.04 and 119,242.56 is: 178,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,784.40 : 214,316.04 = 119,242.56 : x
  2. Step 2: Convert to fraction form
    142,784.40/214,316.04 = 119,242.56/x
  3. Step 3: Cross multiply
    142,784.40x = 214,316.04 × 119,242.56
  4. Step 4: Simplify right side
    142,784.40x = 25,555,593,258.66
  5. Step 5: Solve for x
    x = 25,555,593,258.66/142,784.40
  6. Step 6: Final answer
    x = 178,980.29

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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.