Home / 127,679.10-176,190.27-70,307.34

Finding the Fourth Proportional to 127,679.10, 176,190.27 and 70,307.34

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Solution

The fourth proportional to 127,679.10, 176,190.27 and 70,307.34 is: 97,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,679.10 : 176,190.27 = 70,307.34 : x
  2. Step 2: Convert to fraction form
    127,679.10/176,190.27 = 70,307.34/x
  3. Step 3: Cross multiply
    127,679.10x = 176,190.27 × 70,307.34
  4. Step 4: Simplify right side
    127,679.10x = 12,387,469,217.58
  5. Step 5: Solve for x
    x = 12,387,469,217.58/127,679.10
  6. Step 6: Final answer
    x = 97,020.34

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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.