Home / 144,129.12-216,205.20-50,655.84

Finding the Fourth Proportional to 144,129.12, 216,205.20 and 50,655.84

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Solution

The fourth proportional to 144,129.12, 216,205.20 and 50,655.84 is: 75,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,129.12 : 216,205.20 = 50,655.84 : x
  2. Step 2: Convert to fraction form
    144,129.12/216,205.20 = 50,655.84/x
  3. Step 3: Cross multiply
    144,129.12x = 216,205.20 × 50,655.84
  4. Step 4: Simplify right side
    144,129.12x = 10,952,056,018.37
  5. Step 5: Solve for x
    x = 10,952,056,018.37/144,129.12
  6. Step 6: Final answer
    x = 75,987.81

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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.