Home / 213,780.65-294,970.49-127,726.72

Finding the Fourth Proportional to 213,780.65, 294,970.49 and 127,726.72

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Solution

The fourth proportional to 213,780.65, 294,970.49 and 127,726.72 is: 176,234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,780.65 : 294,970.49 = 127,726.72 : x
  2. Step 2: Convert to fraction form
    213,780.65/294,970.49 = 127,726.72/x
  3. Step 3: Cross multiply
    213,780.65x = 294,970.49 × 127,726.72
  4. Step 4: Simplify right side
    213,780.65x = 37,675,613,587.39
  5. Step 5: Solve for x
    x = 37,675,613,587.39/213,780.65
  6. Step 6: Final answer
    x = 176,234.91

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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.