Home / 132,567.30-182,944.80-72,139.68

Finding the Fourth Proportional to 132,567.30, 182,944.80 and 72,139.68

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Solution

The fourth proportional to 132,567.30, 182,944.80 and 72,139.68 is: 99,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,567.30 : 182,944.80 = 72,139.68 : x
  2. Step 2: Convert to fraction form
    132,567.30/182,944.80 = 72,139.68/x
  3. Step 3: Cross multiply
    132,567.30x = 182,944.80 × 72,139.68
  4. Step 4: Simplify right side
    132,567.30x = 13,197,579,329.66
  5. Step 5: Solve for x
    x = 13,197,579,329.66/132,567.30
  6. Step 6: Final answer
    x = 99,553.81

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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.