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Finding the Fourth Proportional to 145,808.76, 199,903.79 and 143,151.56

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Solution

The fourth proportional to 145,808.76, 199,903.79 and 143,151.56 is: 196,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,808.76 : 199,903.79 = 143,151.56 : x
  2. Step 2: Convert to fraction form
    145,808.76/199,903.79 = 143,151.56/x
  3. Step 3: Cross multiply
    145,808.76x = 199,903.79 × 143,151.56
  4. Step 4: Simplify right side
    145,808.76x = 28,616,539,388.41
  5. Step 5: Solve for x
    x = 28,616,539,388.41/145,808.76
  6. Step 6: Final answer
    x = 196,260.77

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1.5x scale

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.