Home / 189,840.65-284,761.10-56,720.93

Finding the Fourth Proportional to 189,840.65, 284,761.10 and 56,720.93

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Solution

The fourth proportional to 189,840.65, 284,761.10 and 56,720.93 is: 85,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,840.65 : 284,761.10 = 56,720.93 : x
  2. Step 2: Convert to fraction form
    189,840.65/284,761.10 = 56,720.93/x
  3. Step 3: Cross multiply
    189,840.65x = 284,761.10 × 56,720.93
  4. Step 4: Simplify right side
    189,840.65x = 16,151,913,137.82
  5. Step 5: Solve for x
    x = 16,151,913,137.82/189,840.65
  6. Step 6: Final answer
    x = 85,081.43

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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.