Home / 120,576.19-180,901.92-72,597.39

Finding the Fourth Proportional to 120,576.19, 180,901.92 and 72,597.39

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Solution

The fourth proportional to 120,576.19, 180,901.92 and 72,597.39 is: 108,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,576.19 : 180,901.92 = 72,597.39 : x
  2. Step 2: Convert to fraction form
    120,576.19/180,901.92 = 72,597.39/x
  3. Step 3: Cross multiply
    120,576.19x = 180,901.92 × 72,597.39
  4. Step 4: Simplify right side
    120,576.19x = 13,133,007,237.99
  5. Step 5: Solve for x
    x = 13,133,007,237.99/120,576.19
  6. Step 6: Final answer
    x = 108,918.74

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1.5x scale

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.