Home / 120,075.60-180,016.18-50,007.36

Finding the Fourth Proportional to 120,075.60, 180,016.18 and 50,007.36

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Solution

The fourth proportional to 120,075.60, 180,016.18 and 50,007.36 is: 74,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,075.60 : 180,016.18 = 50,007.36 : x
  2. Step 2: Convert to fraction form
    120,075.60/180,016.18 = 50,007.36/x
  3. Step 3: Cross multiply
    120,075.60x = 180,016.18 × 50,007.36
  4. Step 4: Simplify right side
    120,075.60x = 9,002,133,919.08
  5. Step 5: Solve for x
    x = 9,002,133,919.08/120,075.60
  6. Step 6: Final answer
    x = 74,970.55

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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.