Home / 127,530.70-191,256.82-42,126.21

Finding the Fourth Proportional to 127,530.70, 191,256.82 and 42,126.21

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Solution

The fourth proportional to 127,530.70, 191,256.82 and 42,126.21 is: 63,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,530.70 : 191,256.82 = 42,126.21 : x
  2. Step 2: Convert to fraction form
    127,530.70/191,256.82 = 42,126.21/x
  3. Step 3: Cross multiply
    127,530.70x = 191,256.82 × 42,126.21
  4. Step 4: Simplify right side
    127,530.70x = 8,056,925,916.57
  5. Step 5: Solve for x
    x = 8,056,925,916.57/127,530.70
  6. Step 6: Final answer
    x = 63,176.36

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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.