Home / 127,660.14-191,434.80-43,397.70

Finding the Fourth Proportional to 127,660.14, 191,434.80 and 43,397.70

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Solution

The fourth proportional to 127,660.14, 191,434.80 and 43,397.70 is: 65,077.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,660.14 : 191,434.80 = 43,397.70 : x
  2. Step 2: Convert to fraction form
    127,660.14/191,434.80 = 43,397.70/x
  3. Step 3: Cross multiply
    127,660.14x = 191,434.80 × 43,397.70
  4. Step 4: Simplify right side
    127,660.14x = 8,307,830,019.96
  5. Step 5: Solve for x
    x = 8,307,830,019.96/127,660.14
  6. Step 6: Final answer
    x = 65,077.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.