Home / 129,364.77-178,458.06-75,614.67

Finding the Fourth Proportional to 129,364.77, 178,458.06 and 75,614.67

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Solution

The fourth proportional to 129,364.77, 178,458.06 and 75,614.67 is: 104,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,364.77 : 178,458.06 = 75,614.67 : x
  2. Step 2: Convert to fraction form
    129,364.77/178,458.06 = 75,614.67/x
  3. Step 3: Cross multiply
    129,364.77x = 178,458.06 × 75,614.67
  4. Step 4: Simplify right side
    129,364.77x = 13,494,047,315.74
  5. Step 5: Solve for x
    x = 13,494,047,315.74/129,364.77
  6. Step 6: Final answer
    x = 104,310.06

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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.