Home / 130,278.12-195,264.09-55,351.50

Finding the Fourth Proportional to 130,278.12, 195,264.09 and 55,351.50

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Solution

The fourth proportional to 130,278.12, 195,264.09 and 55,351.50 is: 82,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,278.12 : 195,264.09 = 55,351.50 : x
  2. Step 2: Convert to fraction form
    130,278.12/195,264.09 = 55,351.50/x
  3. Step 3: Cross multiply
    130,278.12x = 195,264.09 × 55,351.50
  4. Step 4: Simplify right side
    130,278.12x = 10,808,160,277.64
  5. Step 5: Solve for x
    x = 10,808,160,277.64/130,278.12
  6. Step 6: Final answer
    x = 82,962.21

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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.