Home / 132,985.68-199,216.08-99,743.28

Finding the Fourth Proportional to 132,985.68, 199,216.08 and 99,743.28

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Solution

The fourth proportional to 132,985.68, 199,216.08 and 99,743.28 is: 149,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,985.68 : 199,216.08 = 99,743.28 : x
  2. Step 2: Convert to fraction form
    132,985.68/199,216.08 = 99,743.28/x
  3. Step 3: Cross multiply
    132,985.68x = 199,216.08 × 99,743.28
  4. Step 4: Simplify right side
    132,985.68x = 19,870,465,247.94
  5. Step 5: Solve for x
    x = 19,870,465,247.94/132,985.68
  6. Step 6: Final answer
    x = 149,418.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.