Home / 210,726.34-290,721.08-130,013.88

Finding the Fourth Proportional to 210,726.34, 290,721.08 and 130,013.88

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Solution

The fourth proportional to 210,726.34, 290,721.08 and 130,013.88 is: 179,369.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,726.34 : 290,721.08 = 130,013.88 : x
  2. Step 2: Convert to fraction form
    210,726.34/290,721.08 = 130,013.88/x
  3. Step 3: Cross multiply
    210,726.34x = 290,721.08 × 130,013.88
  4. Step 4: Simplify right side
    210,726.34x = 37,797,775,608.59
  5. Step 5: Solve for x
    x = 37,797,775,608.59/210,726.34
  6. Step 6: Final answer
    x = 179,369.01

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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.