Home / 142,914.60-214,226.10-83,719.80

Finding the Fourth Proportional to 142,914.60, 214,226.10 and 83,719.80

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Solution

The fourth proportional to 142,914.60, 214,226.10 and 83,719.80 is: 125,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,914.60 : 214,226.10 = 83,719.80 : x
  2. Step 2: Convert to fraction form
    142,914.60/214,226.10 = 83,719.80/x
  3. Step 3: Cross multiply
    142,914.60x = 214,226.10 × 83,719.80
  4. Step 4: Simplify right side
    142,914.60x = 17,934,966,246.78
  5. Step 5: Solve for x
    x = 17,934,966,246.78/142,914.60
  6. Step 6: Final answer
    x = 125,494.29

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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.