Home / 210,573.06-290,508.39-129,860.48

Finding the Fourth Proportional to 210,573.06, 290,508.39 and 129,860.48

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Solution

The fourth proportional to 210,573.06, 290,508.39 and 129,860.48 is: 179,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,573.06 : 290,508.39 = 129,860.48 : x
  2. Step 2: Convert to fraction form
    210,573.06/290,508.39 = 129,860.48/x
  3. Step 3: Cross multiply
    210,573.06x = 290,508.39 × 129,860.48
  4. Step 4: Simplify right side
    210,573.06x = 37,725,557,516.89
  5. Step 5: Solve for x
    x = 37,725,557,516.89/210,573.06
  6. Step 6: Final answer
    x = 179,156.62

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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.