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Finding the Fourth Proportional to 144,059.89, 216,089.88 and 38,878.86

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Solution

The fourth proportional to 144,059.89, 216,089.88 and 38,878.86 is: 58,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,059.89 : 216,089.88 = 38,878.86 : x
  2. Step 2: Convert to fraction form
    144,059.89/216,089.88 = 38,878.86/x
  3. Step 3: Cross multiply
    144,059.89x = 216,089.88 × 38,878.86
  4. Step 4: Simplify right side
    144,059.89x = 8,401,328,191.94
  5. Step 5: Solve for x
    x = 8,401,328,191.94/144,059.89
  6. Step 6: Final answer
    x = 58,318.30

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1.5x scale

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.