Home / 142,252.98-213,390.34-42,405.54

Finding the Fourth Proportional to 142,252.98, 213,390.34 and 42,405.54

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Solution

The fourth proportional to 142,252.98, 213,390.34 and 42,405.54 is: 63,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,252.98 : 213,390.34 = 42,405.54 : x
  2. Step 2: Convert to fraction form
    142,252.98/213,390.34 = 42,405.54/x
  3. Step 3: Cross multiply
    142,252.98x = 213,390.34 × 42,405.54
  4. Step 4: Simplify right side
    142,252.98x = 9,048,932,598.48
  5. Step 5: Solve for x
    x = 9,048,932,598.48/142,252.98
  6. Step 6: Final answer
    x = 63,611.55

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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.