Home / 131,125.78-180,953.31-73,765.14

Finding the Fourth Proportional to 131,125.78, 180,953.31 and 73,765.14

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Solution

The fourth proportional to 131,125.78, 180,953.31 and 73,765.14 is: 101,795.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,125.78 : 180,953.31 = 73,765.14 : x
  2. Step 2: Convert to fraction form
    131,125.78/180,953.31 = 73,765.14/x
  3. Step 3: Cross multiply
    131,125.78x = 180,953.31 × 73,765.14
  4. Step 4: Simplify right side
    131,125.78x = 13,348,046,570.38
  5. Step 5: Solve for x
    x = 13,348,046,570.38/131,125.78
  6. Step 6: Final answer
    x = 101,795.75

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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.