Home / 117,980.07-162,868.50-75,563.61

Finding the Fourth Proportional to 117,980.07, 162,868.50 and 75,563.61

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Solution

The fourth proportional to 117,980.07, 162,868.50 and 75,563.61 is: 104,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,980.07 : 162,868.50 = 75,563.61 : x
  2. Step 2: Convert to fraction form
    117,980.07/162,868.50 = 75,563.61/x
  3. Step 3: Cross multiply
    117,980.07x = 162,868.50 × 75,563.61
  4. Step 4: Simplify right side
    117,980.07x = 12,306,931,815.29
  5. Step 5: Solve for x
    x = 12,306,931,815.29/117,980.07
  6. Step 6: Final answer
    x = 104,313.65

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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.