Home / 127,861.43-176,447.34-70,505.76

Finding the Fourth Proportional to 127,861.43, 176,447.34 and 70,505.76

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Solution

The fourth proportional to 127,861.43, 176,447.34 and 70,505.76 is: 97,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,861.43 : 176,447.34 = 70,505.76 : x
  2. Step 2: Convert to fraction form
    127,861.43/176,447.34 = 70,505.76/x
  3. Step 3: Cross multiply
    127,861.43x = 176,447.34 × 70,505.76
  4. Step 4: Simplify right side
    127,861.43x = 12,440,553,806.68
  5. Step 5: Solve for x
    x = 12,440,553,806.68/127,861.43
  6. Step 6: Final answer
    x = 97,297.16

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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.