Home / 142,776.40-214,083.60-54,032.80

Finding the Fourth Proportional to 142,776.40, 214,083.60 and 54,032.80

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Solution

The fourth proportional to 142,776.40, 214,083.60 and 54,032.80 is: 81,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,776.40 : 214,083.60 = 54,032.80 : x
  2. Step 2: Convert to fraction form
    142,776.40/214,083.60 = 54,032.80/x
  3. Step 3: Cross multiply
    142,776.40x = 214,083.60 × 54,032.80
  4. Step 4: Simplify right side
    142,776.40x = 11,567,536,342.08
  5. Step 5: Solve for x
    x = 11,567,536,342.08/142,776.40
  6. Step 6: Final answer
    x = 81,018.55

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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.