Home / 134,853.45-202,217.59-78,709.71

Finding the Fourth Proportional to 134,853.45, 202,217.59 and 78,709.71

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Solution

The fourth proportional to 134,853.45, 202,217.59 and 78,709.71 is: 118,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,853.45 : 202,217.59 = 78,709.71 : x
  2. Step 2: Convert to fraction form
    134,853.45/202,217.59 = 78,709.71/x
  3. Step 3: Cross multiply
    134,853.45x = 202,217.59 × 78,709.71
  4. Step 4: Simplify right side
    134,853.45x = 15,916,487,865.80
  5. Step 5: Solve for x
    x = 15,916,487,865.80/134,853.45
  6. Step 6: Final answer
    x = 118,028.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.