Home / 124,278.51-171,449.78-83,977.59

Finding the Fourth Proportional to 124,278.51, 171,449.78 and 83,977.59

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Solution

The fourth proportional to 124,278.51, 171,449.78 and 83,977.59 is: 115,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,278.51 : 171,449.78 = 83,977.59 : x
  2. Step 2: Convert to fraction form
    124,278.51/171,449.78 = 83,977.59/x
  3. Step 3: Cross multiply
    124,278.51x = 171,449.78 × 83,977.59
  4. Step 4: Simplify right side
    124,278.51x = 14,397,939,330.43
  5. Step 5: Solve for x
    x = 14,397,939,330.43/124,278.51
  6. Step 6: Final answer
    x = 115,852.20

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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.