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Finding the Fourth Proportional to 145,832.98, 218,750.39 and 40,652.86

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Solution

The fourth proportional to 145,832.98, 218,750.39 and 40,652.86 is: 60,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,832.98 : 218,750.39 = 40,652.86 : x
  2. Step 2: Convert to fraction form
    145,832.98/218,750.39 = 40,652.86/x
  3. Step 3: Cross multiply
    145,832.98x = 218,750.39 × 40,652.86
  4. Step 4: Simplify right side
    145,832.98x = 8,892,828,979.62
  5. Step 5: Solve for x
    x = 8,892,828,979.62/145,832.98
  6. Step 6: Final answer
    x = 60,979.55

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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.