Home / 127,123.32-190,686.30-38,377.56

Finding the Fourth Proportional to 127,123.32, 190,686.30 and 38,377.56

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Solution

The fourth proportional to 127,123.32, 190,686.30 and 38,377.56 is: 57,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,123.32 : 190,686.30 = 38,377.56 : x
  2. Step 2: Convert to fraction form
    127,123.32/190,686.30 = 38,377.56/x
  3. Step 3: Cross multiply
    127,123.32x = 190,686.30 × 38,377.56
  4. Step 4: Simplify right side
    127,123.32x = 7,318,074,919.43
  5. Step 5: Solve for x
    x = 7,318,074,919.43/127,123.32
  6. Step 6: Final answer
    x = 57,566.74

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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.