Home / 131,827.36-197,648.88-79,257.76

Finding the Fourth Proportional to 131,827.36, 197,648.88 and 79,257.76

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Solution

The fourth proportional to 131,827.36, 197,648.88 and 79,257.76 is: 118,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,827.36 : 197,648.88 = 79,257.76 : x
  2. Step 2: Convert to fraction form
    131,827.36/197,648.88 = 79,257.76/x
  3. Step 3: Cross multiply
    131,827.36x = 197,648.88 × 79,257.76
  4. Step 4: Simplify right side
    131,827.36x = 15,665,207,495.31
  5. Step 5: Solve for x
    x = 15,665,207,495.31/131,827.36
  6. Step 6: Final answer
    x = 118,831.23

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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.