Home / 152,385.24-228,360.06-85,685.38

Finding the Fourth Proportional to 152,385.24, 228,360.06 and 85,685.38

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Solution

The fourth proportional to 152,385.24, 228,360.06 and 85,685.38 is: 128,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,385.24 : 228,360.06 = 85,685.38 : x
  2. Step 2: Convert to fraction form
    152,385.24/228,360.06 = 85,685.38/x
  3. Step 3: Cross multiply
    152,385.24x = 228,360.06 × 85,685.38
  4. Step 4: Simplify right side
    152,385.24x = 19,567,118,517.92
  5. Step 5: Solve for x
    x = 19,567,118,517.92/152,385.24
  6. Step 6: Final answer
    x = 128,405.60

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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.