Home / 105,253.54-145,251.98-57,509.85

Finding the Fourth Proportional to 105,253.54, 145,251.98 and 57,509.85

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Solution

The fourth proportional to 105,253.54, 145,251.98 and 57,509.85 is: 79,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,253.54 : 145,251.98 = 57,509.85 : x
  2. Step 2: Convert to fraction form
    105,253.54/145,251.98 = 57,509.85/x
  3. Step 3: Cross multiply
    105,253.54x = 145,251.98 × 57,509.85
  4. Step 4: Simplify right side
    105,253.54x = 8,353,419,582.00
  5. Step 5: Solve for x
    x = 8,353,419,582.00/105,253.54
  6. Step 6: Final answer
    x = 79,364.74

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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.