Home / 115,985.90-173,714.79-69,141.98

Finding the Fourth Proportional to 115,985.90, 173,714.79 and 69,141.98

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Solution

The fourth proportional to 115,985.90, 173,714.79 and 69,141.98 is: 103,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,985.90 : 173,714.79 = 69,141.98 : x
  2. Step 2: Convert to fraction form
    115,985.90/173,714.79 = 69,141.98/x
  3. Step 3: Cross multiply
    115,985.90x = 173,714.79 × 69,141.98
  4. Step 4: Simplify right side
    115,985.90x = 12,010,984,535.88
  5. Step 5: Solve for x
    x = 12,010,984,535.88/115,985.90
  6. Step 6: Final answer
    x = 103,555.56

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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.