Home / 168,421.20-252,666.90-56,136.30

Finding the Fourth Proportional to 168,421.20, 252,666.90 and 56,136.30

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Solution

The fourth proportional to 168,421.20, 252,666.90 and 56,136.30 is: 84,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,421.20 : 252,666.90 = 56,136.30 : x
  2. Step 2: Convert to fraction form
    168,421.20/252,666.90 = 56,136.30/x
  3. Step 3: Cross multiply
    168,421.20x = 252,666.90 × 56,136.30
  4. Step 4: Simplify right side
    168,421.20x = 14,183,784,898.47
  5. Step 5: Solve for x
    x = 14,183,784,898.47/168,421.20
  6. Step 6: Final answer
    x = 84,216.15

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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.