Home / 104,849.90-157,119.32-77,011.82

Finding the Fourth Proportional to 104,849.90, 157,119.32 and 77,011.82

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Solution

The fourth proportional to 104,849.90, 157,119.32 and 77,011.82 is: 115,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,849.90 : 157,119.32 = 77,011.82 : x
  2. Step 2: Convert to fraction form
    104,849.90/157,119.32 = 77,011.82/x
  3. Step 3: Cross multiply
    104,849.90x = 157,119.32 × 77,011.82
  4. Step 4: Simplify right side
    104,849.90x = 12,100,043,619.71
  5. Step 5: Solve for x
    x = 12,100,043,619.71/104,849.90
  6. Step 6: Final answer
    x = 115,403.49

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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.