Home / 129,697.61-179,022.66-76,000.07

Finding the Fourth Proportional to 129,697.61, 179,022.66 and 76,000.07

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Solution

The fourth proportional to 129,697.61, 179,022.66 and 76,000.07 is: 104,903.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,697.61 : 179,022.66 = 76,000.07 : x
  2. Step 2: Convert to fraction form
    129,697.61/179,022.66 = 76,000.07/x
  3. Step 3: Cross multiply
    129,697.61x = 179,022.66 × 76,000.07
  4. Step 4: Simplify right side
    129,697.61x = 13,605,734,854.14
  5. Step 5: Solve for x
    x = 13,605,734,854.14/129,697.61
  6. Step 6: Final answer
    x = 104,903.52

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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.