Home / 145,805.76-199,899.68-143,148.56

Finding the Fourth Proportional to 145,805.76, 199,899.68 and 143,148.56

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Solution

The fourth proportional to 145,805.76, 199,899.68 and 143,148.56 is: 196,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,805.76 : 199,899.68 = 143,148.56 : x
  2. Step 2: Convert to fraction form
    145,805.76/199,899.68 = 143,148.56/x
  3. Step 3: Cross multiply
    145,805.76x = 199,899.68 × 143,148.56
  4. Step 4: Simplify right side
    145,805.76x = 28,615,349,621.22
  5. Step 5: Solve for x
    x = 28,615,349,621.22/145,805.76
  6. Step 6: Final answer
    x = 196,256.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.