Home / 142,730.40-213,804.93-67,622.88

Finding the Fourth Proportional to 142,730.40, 213,804.93 and 67,622.88

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Solution

The fourth proportional to 142,730.40, 213,804.93 and 67,622.88 is: 101,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,730.40 : 213,804.93 = 67,622.88 : x
  2. Step 2: Convert to fraction form
    142,730.40/213,804.93 = 67,622.88/x
  3. Step 3: Cross multiply
    142,730.40x = 213,804.93 × 67,622.88
  4. Step 4: Simplify right side
    142,730.40x = 14,458,105,124.80
  5. Step 5: Solve for x
    x = 14,458,105,124.80/142,730.40
  6. Step 6: Final answer
    x = 101,296.61

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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.