Home / 104,739.48-144,543.69-56,989.98

Finding the Fourth Proportional to 104,739.48, 144,543.69 and 56,989.98

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Solution

The fourth proportional to 104,739.48, 144,543.69 and 56,989.98 is: 78,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,739.48 : 144,543.69 = 56,989.98 : x
  2. Step 2: Convert to fraction form
    104,739.48/144,543.69 = 56,989.98/x
  3. Step 3: Cross multiply
    104,739.48x = 144,543.69 × 56,989.98
  4. Step 4: Simplify right side
    104,739.48x = 8,237,542,002.23
  5. Step 5: Solve for x
    x = 8,237,542,002.23/104,739.48
  6. Step 6: Final answer
    x = 78,647.92

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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.