Home / 102,045.44-140,822.58-56,721.98

Finding the Fourth Proportional to 102,045.44, 140,822.58 and 56,721.98

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Solution

The fourth proportional to 102,045.44, 140,822.58 and 56,721.98 is: 78,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,045.44 : 140,822.58 = 56,721.98 : x
  2. Step 2: Convert to fraction form
    102,045.44/140,822.58 = 56,721.98/x
  3. Step 3: Cross multiply
    102,045.44x = 140,822.58 × 56,721.98
  4. Step 4: Simplify right side
    102,045.44x = 7,987,735,566.31
  5. Step 5: Solve for x
    x = 7,987,735,566.31/102,045.44
  6. Step 6: Final answer
    x = 78,276.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.