Home / 173,638.10-260,457.15-142,145.30

Finding the Fourth Proportional to 173,638.10, 260,457.15 and 142,145.30

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Solution

The fourth proportional to 173,638.10, 260,457.15 and 142,145.30 is: 213,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,638.10 : 260,457.15 = 142,145.30 : x
  2. Step 2: Convert to fraction form
    173,638.10/260,457.15 = 142,145.30/x
  3. Step 3: Cross multiply
    173,638.10x = 260,457.15 × 142,145.30
  4. Step 4: Simplify right side
    173,638.10x = 37,022,759,723.90
  5. Step 5: Solve for x
    x = 37,022,759,723.90/173,638.10
  6. Step 6: Final answer
    x = 213,217.95

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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.