Home / 129,885.54-195,050.64-80,260.08

Finding the Fourth Proportional to 129,885.54, 195,050.64 and 80,260.08

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Solution

The fourth proportional to 129,885.54, 195,050.64 and 80,260.08 is: 120,527.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,885.54 : 195,050.64 = 80,260.08 : x
  2. Step 2: Convert to fraction form
    129,885.54/195,050.64 = 80,260.08/x
  3. Step 3: Cross multiply
    129,885.54x = 195,050.64 × 80,260.08
  4. Step 4: Simplify right side
    129,885.54x = 15,654,779,970.45
  5. Step 5: Solve for x
    x = 15,654,779,970.45/129,885.54
  6. Step 6: Final answer
    x = 120,527.50

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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.