Home / 114,173.10-157,535.28-78,350.04

Finding the Fourth Proportional to 114,173.10, 157,535.28 and 78,350.04

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Solution

The fourth proportional to 114,173.10, 157,535.28 and 78,350.04 is: 108,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,173.10 : 157,535.28 = 78,350.04 : x
  2. Step 2: Convert to fraction form
    114,173.10/157,535.28 = 78,350.04/x
  3. Step 3: Cross multiply
    114,173.10x = 157,535.28 × 78,350.04
  4. Step 4: Simplify right side
    114,173.10x = 12,342,895,489.41
  5. Step 5: Solve for x
    x = 12,342,895,489.41/114,173.10
  6. Step 6: Final answer
    x = 108,106.86

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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.