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Finding the Fourth Proportional to 105,310, 145,327.80 and 60,623.92

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Solution

The fourth proportional to 105,310, 145,327.80 and 60,623.92 is: 83,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,310 : 145,327.80 = 60,623.92 : x
  2. Step 2: Convert to fraction form
    105,310/145,327.80 = 60,623.92/x
  3. Step 3: Cross multiply
    105,310x = 145,327.80 × 60,623.92
  4. Step 4: Simplify right side
    105,310x = 8,810,340,920.98
  5. Step 5: Solve for x
    x = 8,810,340,920.98/105,310
  6. Step 6: Final answer
    x = 83,661.01

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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.