Home / 142,743.60-214,115.40-83,548.80

Finding the Fourth Proportional to 142,743.60, 214,115.40 and 83,548.80

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Solution

The fourth proportional to 142,743.60, 214,115.40 and 83,548.80 is: 125,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,743.60 : 214,115.40 = 83,548.80 : x
  2. Step 2: Convert to fraction form
    142,743.60/214,115.40 = 83,548.80/x
  3. Step 3: Cross multiply
    142,743.60x = 214,115.40 × 83,548.80
  4. Step 4: Simplify right side
    142,743.60x = 17,889,084,731.52
  5. Step 5: Solve for x
    x = 17,889,084,731.52/142,743.60
  6. Step 6: Final answer
    x = 125,323.20

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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.