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Finding the Fourth Proportional to 145,833.98, 218,751.89 and 40,653.86

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Solution

The fourth proportional to 145,833.98, 218,751.89 and 40,653.86 is: 60,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,833.98 : 218,751.89 = 40,653.86 : x
  2. Step 2: Convert to fraction form
    145,833.98/218,751.89 = 40,653.86/x
  3. Step 3: Cross multiply
    145,833.98x = 218,751.89 × 40,653.86
  4. Step 4: Simplify right side
    145,833.98x = 8,893,108,710.80
  5. Step 5: Solve for x
    x = 8,893,108,710.80/145,833.98
  6. Step 6: Final answer
    x = 60,981.05

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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.