Home / 125,518.03-188,219.63-74,940.01

Finding the Fourth Proportional to 125,518.03, 188,219.63 and 74,940.01

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Solution

The fourth proportional to 125,518.03, 188,219.63 and 74,940.01 is: 112,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,518.03 : 188,219.63 = 74,940.01 : x
  2. Step 2: Convert to fraction form
    125,518.03/188,219.63 = 74,940.01/x
  3. Step 3: Cross multiply
    125,518.03x = 188,219.63 × 74,940.01
  4. Step 4: Simplify right side
    125,518.03x = 14,105,180,671.20
  5. Step 5: Solve for x
    x = 14,105,180,671.20/125,518.03
  6. Step 6: Final answer
    x = 112,375.74

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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.