Home / 127,965.30-191,962.35-39,218.10

Finding the Fourth Proportional to 127,965.30, 191,962.35 and 39,218.10

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Solution

The fourth proportional to 127,965.30, 191,962.35 and 39,218.10 is: 58,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965.30 : 191,962.35 = 39,218.10 : x
  2. Step 2: Convert to fraction form
    127,965.30/191,962.35 = 39,218.10/x
  3. Step 3: Cross multiply
    127,965.30x = 191,962.35 × 39,218.10
  4. Step 4: Simplify right side
    127,965.30x = 7,528,398,638.54
  5. Step 5: Solve for x
    x = 7,528,398,638.54/127,965.30
  6. Step 6: Final answer
    x = 58,831.56

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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.