Home / 252,081.72-347,889.63-138,904.47

Finding the Fourth Proportional to 252,081.72, 347,889.63 and 138,904.47

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Solution

The fourth proportional to 252,081.72, 347,889.63 and 138,904.47 is: 191,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,081.72 : 347,889.63 = 138,904.47 : x
  2. Step 2: Convert to fraction form
    252,081.72/347,889.63 = 138,904.47/x
  3. Step 3: Cross multiply
    252,081.72x = 347,889.63 × 138,904.47
  4. Step 4: Simplify right side
    252,081.72x = 48,323,424,673.65
  5. Step 5: Solve for x
    x = 48,323,424,673.65/252,081.72
  6. Step 6: Final answer
    x = 191,697.46

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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.