Home / 129,730.12-179,027.46-70,114.12

Finding the Fourth Proportional to 129,730.12, 179,027.46 and 70,114.12

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Solution

The fourth proportional to 129,730.12, 179,027.46 and 70,114.12 is: 96,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,730.12 : 179,027.46 = 70,114.12 : x
  2. Step 2: Convert to fraction form
    129,730.12/179,027.46 = 70,114.12/x
  3. Step 3: Cross multiply
    129,730.12x = 179,027.46 × 70,114.12
  4. Step 4: Simplify right side
    129,730.12x = 12,552,352,813.74
  5. Step 5: Solve for x
    x = 12,552,352,813.74/129,730.12
  6. Step 6: Final answer
    x = 96,757.43

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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.