Home / 104,665.76-144,438.24-56,918.72

Finding the Fourth Proportional to 104,665.76, 144,438.24 and 56,918.72

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Solution

The fourth proportional to 104,665.76, 144,438.24 and 56,918.72 is: 78,547.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,665.76 : 144,438.24 = 56,918.72 : x
  2. Step 2: Convert to fraction form
    104,665.76/144,438.24 = 56,918.72/x
  3. Step 3: Cross multiply
    104,665.76x = 144,438.24 × 56,918.72
  4. Step 4: Simplify right side
    104,665.76x = 8,221,239,739.85
  5. Step 5: Solve for x
    x = 8,221,239,739.85/104,665.76
  6. Step 6: Final answer
    x = 78,547.56

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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.