Home / 129,794.94-179,119.35-76,118.67

Finding the Fourth Proportional to 129,794.94, 179,119.35 and 76,118.67

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Solution

The fourth proportional to 129,794.94, 179,119.35 and 76,118.67 is: 105,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.94 : 179,119.35 = 76,118.67 : x
  2. Step 2: Convert to fraction form
    129,794.94/179,119.35 = 76,118.67/x
  3. Step 3: Cross multiply
    129,794.94x = 179,119.35 × 76,118.67
  4. Step 4: Simplify right side
    129,794.94x = 13,634,326,693.26
  5. Step 5: Solve for x
    x = 13,634,326,693.26/129,794.94
  6. Step 6: Final answer
    x = 105,045.13

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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.