Home / 130,635.42-195,620.75-86,127.13

Finding the Fourth Proportional to 130,635.42, 195,620.75 and 86,127.13

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Solution

The fourth proportional to 130,635.42, 195,620.75 and 86,127.13 is: 128,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,635.42 : 195,620.75 = 86,127.13 : x
  2. Step 2: Convert to fraction form
    130,635.42/195,620.75 = 86,127.13/x
  3. Step 3: Cross multiply
    130,635.42x = 195,620.75 × 86,127.13
  4. Step 4: Simplify right side
    130,635.42x = 16,848,253,765.95
  5. Step 5: Solve for x
    x = 16,848,253,765.95/130,635.42
  6. Step 6: Final answer
    x = 128,971.56

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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.