Home / 142,410.80-213,155.40-131,351.60

Finding the Fourth Proportional to 142,410.80, 213,155.40 and 131,351.60

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Solution

The fourth proportional to 142,410.80, 213,155.40 and 131,351.60 is: 196,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,410.80 : 213,155.40 = 131,351.60 : x
  2. Step 2: Convert to fraction form
    142,410.80/213,155.40 = 131,351.60/x
  3. Step 3: Cross multiply
    142,410.80x = 213,155.40 × 131,351.60
  4. Step 4: Simplify right side
    142,410.80x = 27,998,302,838.64
  5. Step 5: Solve for x
    x = 27,998,302,838.64/142,410.80
  6. Step 6: Final answer
    x = 196,602.38

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1.5x scale

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.