Home / 213,766.28-294,951.53-128,881.52

Finding the Fourth Proportional to 213,766.28, 294,951.53 and 128,881.52

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Solution

The fourth proportional to 213,766.28, 294,951.53 and 128,881.52 is: 177,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,766.28 : 294,951.53 = 128,881.52 : x
  2. Step 2: Convert to fraction form
    213,766.28/294,951.53 = 128,881.52/x
  3. Step 3: Cross multiply
    213,766.28x = 294,951.53 × 128,881.52
  4. Step 4: Simplify right side
    213,766.28x = 38,013,799,393.56
  5. Step 5: Solve for x
    x = 38,013,799,393.56/213,766.28
  6. Step 6: Final answer
    x = 177,828.80

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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.