Home / 129,925.80-179,380.98-106,109.64

Finding the Fourth Proportional to 129,925.80, 179,380.98 and 106,109.64

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Solution

The fourth proportional to 129,925.80, 179,380.98 and 106,109.64 is: 146,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,925.80 : 179,380.98 = 106,109.64 : x
  2. Step 2: Convert to fraction form
    129,925.80/179,380.98 = 106,109.64/x
  3. Step 3: Cross multiply
    129,925.80x = 179,380.98 × 106,109.64
  4. Step 4: Simplify right side
    129,925.80x = 19,034,051,210.65
  5. Step 5: Solve for x
    x = 19,034,051,210.65/129,925.80
  6. Step 6: Final answer
    x = 146,499.40

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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.