Home / 142,451.58-213,707.61-53,702.94

Finding the Fourth Proportional to 142,451.58, 213,707.61 and 53,702.94

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Solution

The fourth proportional to 142,451.58, 213,707.61 and 53,702.94 is: 80,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.58 : 213,707.61 = 53,702.94 : x
  2. Step 2: Convert to fraction form
    142,451.58/213,707.61 = 53,702.94/x
  3. Step 3: Cross multiply
    142,451.58x = 213,707.61 × 53,702.94
  4. Step 4: Simplify right side
    142,451.58x = 11,476,726,957.37
  5. Step 5: Solve for x
    x = 11,476,726,957.37/142,451.58
  6. Step 6: Final answer
    x = 80,565.81

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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.