Home / 129,828.40-194,720.52-36,312.40

Finding the Fourth Proportional to 129,828.40, 194,720.52 and 36,312.40

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Solution

The fourth proportional to 129,828.40, 194,720.52 and 36,312.40 is: 54,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.40 : 194,720.52 = 36,312.40 : x
  2. Step 2: Convert to fraction form
    129,828.40/194,720.52 = 36,312.40/x
  3. Step 3: Cross multiply
    129,828.40x = 194,720.52 × 36,312.40
  4. Step 4: Simplify right side
    129,828.40x = 7,070,769,410.45
  5. Step 5: Solve for x
    x = 7,070,769,410.45/129,828.40
  6. Step 6: Final answer
    x = 54,462.42

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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.