Home / 131,788.30-181,880.88-75,208.18

Finding the Fourth Proportional to 131,788.30, 181,880.88 and 75,208.18

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Solution

The fourth proportional to 131,788.30, 181,880.88 and 75,208.18 is: 103,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.30 : 181,880.88 = 75,208.18 : x
  2. Step 2: Convert to fraction form
    131,788.30/181,880.88 = 75,208.18/x
  3. Step 3: Cross multiply
    131,788.30x = 181,880.88 × 75,208.18
  4. Step 4: Simplify right side
    131,788.30x = 13,678,929,961.60
  5. Step 5: Solve for x
    x = 13,678,929,961.60/131,788.30
  6. Step 6: Final answer
    x = 103,794.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.