Home / 142,436.52-213,504.12-53,651.61

Finding the Fourth Proportional to 142,436.52, 213,504.12 and 53,651.61

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Solution

The fourth proportional to 142,436.52, 213,504.12 and 53,651.61 is: 80,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,436.52 : 213,504.12 = 53,651.61 : x
  2. Step 2: Convert to fraction form
    142,436.52/213,504.12 = 53,651.61/x
  3. Step 3: Cross multiply
    142,436.52x = 213,504.12 × 53,651.61
  4. Step 4: Simplify right side
    142,436.52x = 11,454,839,779.63
  5. Step 5: Solve for x
    x = 11,454,839,779.63/142,436.52
  6. Step 6: Final answer
    x = 80,420.67

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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.