Home / 127,695.81-176,221.45-70,336.43

Finding the Fourth Proportional to 127,695.81, 176,221.45 and 70,336.43

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Solution

The fourth proportional to 127,695.81, 176,221.45 and 70,336.43 is: 97,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,695.81 : 176,221.45 = 70,336.43 : x
  2. Step 2: Convert to fraction form
    127,695.81/176,221.45 = 70,336.43/x
  3. Step 3: Cross multiply
    127,695.81x = 176,221.45 × 70,336.43
  4. Step 4: Simplify right side
    127,695.81x = 12,394,787,682.42
  5. Step 5: Solve for x
    x = 12,394,787,682.42/127,695.81
  6. Step 6: Final answer
    x = 97,064.95

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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.