Home / 152,880.10-229,320.15-82,021.30

Finding the Fourth Proportional to 152,880.10, 229,320.15 and 82,021.30

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Solution

The fourth proportional to 152,880.10, 229,320.15 and 82,021.30 is: 123,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,880.10 : 229,320.15 = 82,021.30 : x
  2. Step 2: Convert to fraction form
    152,880.10/229,320.15 = 82,021.30/x
  3. Step 3: Cross multiply
    152,880.10x = 229,320.15 × 82,021.30
  4. Step 4: Simplify right side
    152,880.10x = 18,809,136,819.20
  5. Step 5: Solve for x
    x = 18,809,136,819.20/152,880.10
  6. Step 6: Final answer
    x = 123,031.95

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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.