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Finding the Fourth Proportional to 127,570.92, 191,315.58 and 42,165.84

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Solution

The fourth proportional to 127,570.92, 191,315.58 and 42,165.84 is: 63,235.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,570.92 : 191,315.58 = 42,165.84 : x
  2. Step 2: Convert to fraction form
    127,570.92/191,315.58 = 42,165.84/x
  3. Step 3: Cross multiply
    127,570.92x = 191,315.58 × 42,165.84
  4. Step 4: Simplify right side
    127,570.92x = 8,066,982,135.79
  5. Step 5: Solve for x
    x = 8,066,982,135.79/127,570.92
  6. Step 6: Final answer
    x = 63,235.27

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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.