Home / 168,779.88-253,170.23-42,420.42

Finding the Fourth Proportional to 168,779.88, 253,170.23 and 42,420.42

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Solution

The fourth proportional to 168,779.88, 253,170.23 and 42,420.42 is: 63,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,779.88 : 253,170.23 = 42,420.42 : x
  2. Step 2: Convert to fraction form
    168,779.88/253,170.23 = 42,420.42/x
  3. Step 3: Cross multiply
    168,779.88x = 253,170.23 × 42,420.42
  4. Step 4: Simplify right side
    168,779.88x = 10,739,587,275.99
  5. Step 5: Solve for x
    x = 10,739,587,275.99/168,779.88
  6. Step 6: Final answer
    x = 63,630.73

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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.