Home / 210,301.76-290,203.08-125,420.24

Finding the Fourth Proportional to 210,301.76, 290,203.08 and 125,420.24

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Solution

The fourth proportional to 210,301.76, 290,203.08 and 125,420.24 is: 173,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,301.76 : 290,203.08 = 125,420.24 : x
  2. Step 2: Convert to fraction form
    210,301.76/290,203.08 = 125,420.24/x
  3. Step 3: Cross multiply
    210,301.76x = 290,203.08 × 125,420.24
  4. Step 4: Simplify right side
    210,301.76x = 36,397,339,942.34
  5. Step 5: Solve for x
    x = 36,397,339,942.34/210,301.76
  6. Step 6: Final answer
    x = 173,071.97

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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.