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Finding the Fourth Proportional to 105,364.99, 145,406.21 and 60,042.00

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Solution

The fourth proportional to 105,364.99, 145,406.21 and 60,042.00 is: 82,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,364.99 : 145,406.21 = 60,042.00 : x
  2. Step 2: Convert to fraction form
    105,364.99/145,406.21 = 60,042.00/x
  3. Step 3: Cross multiply
    105,364.99x = 145,406.21 × 60,042.00
  4. Step 4: Simplify right side
    105,364.99x = 8,730,479,222.25
  5. Step 5: Solve for x
    x = 8,730,479,222.25/105,364.99
  6. Step 6: Final answer
    x = 82,859.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.