Home / 151,213.83-208,639.49-127,106.43

Finding the Fourth Proportional to 151,213.83, 208,639.49 and 127,106.43

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Solution

The fourth proportional to 151,213.83, 208,639.49 and 127,106.43 is: 175,376.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,213.83 : 208,639.49 = 127,106.43 : x
  2. Step 2: Convert to fraction form
    151,213.83/208,639.49 = 127,106.43/x
  3. Step 3: Cross multiply
    151,213.83x = 208,639.49 × 127,106.43
  4. Step 4: Simplify right side
    151,213.83x = 26,519,420,095.39
  5. Step 5: Solve for x
    x = 26,519,420,095.39/151,213.83
  6. Step 6: Final answer
    x = 175,376.95

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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.