Home / 189,435.21-284,152.80-56,315.25

Finding the Fourth Proportional to 189,435.21, 284,152.80 and 56,315.25

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Solution

The fourth proportional to 189,435.21, 284,152.80 and 56,315.25 is: 84,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,435.21 : 284,152.80 = 56,315.25 : x
  2. Step 2: Convert to fraction form
    189,435.21/284,152.80 = 56,315.25/x
  3. Step 3: Cross multiply
    189,435.21x = 284,152.80 × 56,315.25
  4. Step 4: Simplify right side
    189,435.21x = 16,002,135,970.20
  5. Step 5: Solve for x
    x = 16,002,135,970.20/189,435.21
  6. Step 6: Final answer
    x = 84,472.87

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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.