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Finding the Fourth Proportional to 173,536.40, 260,131.80 and 79,878.80

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Solution

The fourth proportional to 173,536.40, 260,131.80 and 79,878.80 is: 119,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,536.40 : 260,131.80 = 79,878.80 : x
  2. Step 2: Convert to fraction form
    173,536.40/260,131.80 = 79,878.80/x
  3. Step 3: Cross multiply
    173,536.40x = 260,131.80 × 79,878.80
  4. Step 4: Simplify right side
    173,536.40x = 20,779,016,025.84
  5. Step 5: Solve for x
    x = 20,779,016,025.84/173,536.40
  6. Step 6: Final answer
    x = 119,738.66

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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.