Home / 127,539.84-191,269.20-42,131.76

Finding the Fourth Proportional to 127,539.84, 191,269.20 and 42,131.76

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Solution

The fourth proportional to 127,539.84, 191,269.20 and 42,131.76 is: 63,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,539.84 : 191,269.20 = 42,131.76 : x
  2. Step 2: Convert to fraction form
    127,539.84/191,269.20 = 42,131.76/x
  3. Step 3: Cross multiply
    127,539.84x = 191,269.20 × 42,131.76
  4. Step 4: Simplify right side
    127,539.84x = 8,058,508,029.79
  5. Step 5: Solve for x
    x = 8,058,508,029.79/127,539.84
  6. Step 6: Final answer
    x = 63,184.24

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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.