Home / 134,855.58-202,220.78-78,711.84

Finding the Fourth Proportional to 134,855.58, 202,220.78 and 78,711.84

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Solution

The fourth proportional to 134,855.58, 202,220.78 and 78,711.84 is: 118,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,855.58 : 202,220.78 = 78,711.84 : x
  2. Step 2: Convert to fraction form
    134,855.58/202,220.78 = 78,711.84/x
  3. Step 3: Cross multiply
    134,855.58x = 202,220.78 × 78,711.84
  4. Step 4: Simplify right side
    134,855.58x = 15,917,169,680.04
  5. Step 5: Solve for x
    x = 15,917,169,680.04/134,855.58
  6. Step 6: Final answer
    x = 118,031.23

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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.