Home / 125,922.10-188,883.15-72,705.10

Finding the Fourth Proportional to 125,922.10, 188,883.15 and 72,705.10

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Solution

The fourth proportional to 125,922.10, 188,883.15 and 72,705.10 is: 109,057.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,922.10 : 188,883.15 = 72,705.10 : x
  2. Step 2: Convert to fraction form
    125,922.10/188,883.15 = 72,705.10/x
  3. Step 3: Cross multiply
    125,922.10x = 188,883.15 × 72,705.10
  4. Step 4: Simplify right side
    125,922.10x = 13,732,768,309.07
  5. Step 5: Solve for x
    x = 13,732,768,309.07/125,922.10
  6. Step 6: Final answer
    x = 109,057.65

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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.