Home / 127,660.16-191,518.66-38,920.58

Finding the Fourth Proportional to 127,660.16, 191,518.66 and 38,920.58

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Solution

The fourth proportional to 127,660.16, 191,518.66 and 38,920.58 is: 58,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,660.16 : 191,518.66 = 38,920.58 : x
  2. Step 2: Convert to fraction form
    127,660.16/191,518.66 = 38,920.58/x
  3. Step 3: Cross multiply
    127,660.16x = 191,518.66 × 38,920.58
  4. Step 4: Simplify right side
    127,660.16x = 7,454,017,328.02
  5. Step 5: Solve for x
    x = 7,454,017,328.02/127,660.16
  6. Step 6: Final answer
    x = 58,389.53

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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.