Home / 118,515.40-177,708.30-48,315.40

Finding the Fourth Proportional to 118,515.40, 177,708.30 and 48,315.40

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Solution

The fourth proportional to 118,515.40, 177,708.30 and 48,315.40 is: 72,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,515.40 : 177,708.30 = 48,315.40 : x
  2. Step 2: Convert to fraction form
    118,515.40/177,708.30 = 48,315.40/x
  3. Step 3: Cross multiply
    118,515.40x = 177,708.30 × 48,315.40
  4. Step 4: Simplify right side
    118,515.40x = 8,586,047,597.82
  5. Step 5: Solve for x
    x = 8,586,047,597.82/118,515.40
  6. Step 6: Final answer
    x = 72,446.68

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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.