Home / 220,278.07-303,985.88-124,782.72

Finding the Fourth Proportional to 220,278.07, 303,985.88 and 124,782.72

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Solution

The fourth proportional to 220,278.07, 303,985.88 and 124,782.72 is: 172,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,278.07 : 303,985.88 = 124,782.72 : x
  2. Step 2: Convert to fraction form
    220,278.07/303,985.88 = 124,782.72/x
  3. Step 3: Cross multiply
    220,278.07x = 303,985.88 × 124,782.72
  4. Step 4: Simplify right side
    220,278.07x = 37,932,184,947.99
  5. Step 5: Solve for x
    x = 37,932,184,947.99/220,278.07
  6. Step 6: Final answer
    x = 172,201.37

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1.5x scale

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.