Home / 140,706.24-211,065.84-78,329.76

Finding the Fourth Proportional to 140,706.24, 211,065.84 and 78,329.76

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Solution

The fourth proportional to 140,706.24, 211,065.84 and 78,329.76 is: 117,498.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,706.24 : 211,065.84 = 78,329.76 : x
  2. Step 2: Convert to fraction form
    140,706.24/211,065.84 = 78,329.76/x
  3. Step 3: Cross multiply
    140,706.24x = 211,065.84 × 78,329.76
  4. Step 4: Simplify right side
    140,706.24x = 16,532,736,591.40
  5. Step 5: Solve for x
    x = 16,532,736,591.40/140,706.24
  6. Step 6: Final answer
    x = 117,498.25

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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.