Home / 127,511.08-191,289.84-42,126.82

Finding the Fourth Proportional to 127,511.08, 191,289.84 and 42,126.82

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Solution

The fourth proportional to 127,511.08, 191,289.84 and 42,126.82 is: 63,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,511.08 : 191,289.84 = 42,126.82 : x
  2. Step 2: Convert to fraction form
    127,511.08/191,289.84 = 42,126.82/x
  3. Step 3: Cross multiply
    127,511.08x = 191,289.84 × 42,126.82
  4. Step 4: Simplify right side
    127,511.08x = 8,058,432,657.51
  5. Step 5: Solve for x
    x = 8,058,432,657.51/127,511.08
  6. Step 6: Final answer
    x = 63,197.90

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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.