Home / 330,699.02-495,995.37-90,756.87

Finding the Fourth Proportional to 330,699.02, 495,995.37 and 90,756.87

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Solution

The fourth proportional to 330,699.02, 495,995.37 and 90,756.87 is: 136,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,699.02 : 495,995.37 = 90,756.87 : x
  2. Step 2: Convert to fraction form
    330,699.02/495,995.37 = 90,756.87/x
  3. Step 3: Cross multiply
    330,699.02x = 495,995.37 × 90,756.87
  4. Step 4: Simplify right side
    330,699.02x = 45,014,985,115.37
  5. Step 5: Solve for x
    x = 45,014,985,115.37/330,699.02
  6. Step 6: Final answer
    x = 136,120.71

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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.