Home / 221,036.13-305,025.75-122,925.39

Finding the Fourth Proportional to 221,036.13, 305,025.75 and 122,925.39

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Solution

The fourth proportional to 221,036.13, 305,025.75 and 122,925.39 is: 169,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,036.13 : 305,025.75 = 122,925.39 : x
  2. Step 2: Convert to fraction form
    221,036.13/305,025.75 = 122,925.39/x
  3. Step 3: Cross multiply
    221,036.13x = 305,025.75 × 122,925.39
  4. Step 4: Simplify right side
    221,036.13x = 37,495,409,278.79
  5. Step 5: Solve for x
    x = 37,495,409,278.79/221,036.13
  6. Step 6: Final answer
    x = 169,634.75

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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.