Home / 142,799.80-214,199.70-137,356.60

Finding the Fourth Proportional to 142,799.80, 214,199.70 and 137,356.60

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Solution

The fourth proportional to 142,799.80, 214,199.70 and 137,356.60 is: 206,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,799.80 : 214,199.70 = 137,356.60 : x
  2. Step 2: Convert to fraction form
    142,799.80/214,199.70 = 137,356.60/x
  3. Step 3: Cross multiply
    142,799.80x = 214,199.70 × 137,356.60
  4. Step 4: Simplify right side
    142,799.80x = 29,421,742,513.02
  5. Step 5: Solve for x
    x = 29,421,742,513.02/142,799.80
  6. Step 6: Final answer
    x = 206,034.90

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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.