Home / 142,784.40-214,095.60-54,040.80

Finding the Fourth Proportional to 142,784.40, 214,095.60 and 54,040.80

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Solution

The fourth proportional to 142,784.40, 214,095.60 and 54,040.80 is: 81,030.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,784.40 : 214,095.60 = 54,040.80 : x
  2. Step 2: Convert to fraction form
    142,784.40/214,095.60 = 54,040.80/x
  3. Step 3: Cross multiply
    142,784.40x = 214,095.60 × 54,040.80
  4. Step 4: Simplify right side
    142,784.40x = 11,569,897,500.48
  5. Step 5: Solve for x
    x = 11,569,897,500.48/142,784.40
  6. Step 6: Final answer
    x = 81,030.54

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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.