Home / 142,800.90-214,173.81-105,009.54

Finding the Fourth Proportional to 142,800.90, 214,173.81 and 105,009.54

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Solution

The fourth proportional to 142,800.90, 214,173.81 and 105,009.54 is: 157,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,800.90 : 214,173.81 = 105,009.54 : x
  2. Step 2: Convert to fraction form
    142,800.90/214,173.81 = 105,009.54/x
  3. Step 3: Cross multiply
    142,800.90x = 214,173.81 × 105,009.54
  4. Step 4: Simplify right side
    142,800.90x = 22,490,293,268.15
  5. Step 5: Solve for x
    x = 22,490,293,268.15/142,800.90
  6. Step 6: Final answer
    x = 157,494.06

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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.