Home / 128,265.46-177,056.28-114,813.45

Finding the Fourth Proportional to 128,265.46, 177,056.28 and 114,813.45

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Solution

The fourth proportional to 128,265.46, 177,056.28 and 114,813.45 is: 158,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,265.46 : 177,056.28 = 114,813.45 : x
  2. Step 2: Convert to fraction form
    128,265.46/177,056.28 = 114,813.45/x
  3. Step 3: Cross multiply
    128,265.46x = 177,056.28 × 114,813.45
  4. Step 4: Simplify right side
    128,265.46x = 20,328,442,350.97
  5. Step 5: Solve for x
    x = 20,328,442,350.97/128,265.46
  6. Step 6: Final answer
    x = 158,487.27

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1.5x scale

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.