Home / 142,285.41-213,533.35-67,405.70

Finding the Fourth Proportional to 142,285.41, 213,533.35 and 67,405.70

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Solution

The fourth proportional to 142,285.41, 213,533.35 and 67,405.70 is: 101,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,285.41 : 213,533.35 = 67,405.70 : x
  2. Step 2: Convert to fraction form
    142,285.41/213,533.35 = 67,405.70/x
  3. Step 3: Cross multiply
    142,285.41x = 213,533.35 × 67,405.70
  4. Step 4: Simplify right side
    142,285.41x = 14,393,365,295.41
  5. Step 5: Solve for x
    x = 14,393,365,295.41/142,285.41
  6. Step 6: Final answer
    x = 101,158.41

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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.