Home / 127,715.86-176,261.70-70,361.05

Finding the Fourth Proportional to 127,715.86, 176,261.70 and 70,361.05

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Solution

The fourth proportional to 127,715.86, 176,261.70 and 70,361.05 is: 97,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,715.86 : 176,261.70 = 70,361.05 : x
  2. Step 2: Convert to fraction form
    127,715.86/176,261.70 = 70,361.05/x
  3. Step 3: Cross multiply
    127,715.86x = 176,261.70 × 70,361.05
  4. Step 4: Simplify right side
    127,715.86x = 12,401,958,286.79
  5. Step 5: Solve for x
    x = 12,401,958,286.79/127,715.86
  6. Step 6: Final answer
    x = 97,105.86

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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.