Home / 125,836.05-173,657.87-72,131.22

Finding the Fourth Proportional to 125,836.05, 173,657.87 and 72,131.22

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Solution

The fourth proportional to 125,836.05, 173,657.87 and 72,131.22 is: 99,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,836.05 : 173,657.87 = 72,131.22 : x
  2. Step 2: Convert to fraction form
    125,836.05/173,657.87 = 72,131.22/x
  3. Step 3: Cross multiply
    125,836.05x = 173,657.87 × 72,131.22
  4. Step 4: Simplify right side
    125,836.05x = 12,526,153,665.05
  5. Step 5: Solve for x
    x = 12,526,153,665.05/125,836.05
  6. Step 6: Final answer
    x = 99,543.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.