Home / 125,845.80-188,574.30-109,127.40

Finding the Fourth Proportional to 125,845.80, 188,574.30 and 109,127.40

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Solution

The fourth proportional to 125,845.80, 188,574.30 and 109,127.40 is: 163,522.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,845.80 : 188,574.30 = 109,127.40 : x
  2. Step 2: Convert to fraction form
    125,845.80/188,574.30 = 109,127.40/x
  3. Step 3: Cross multiply
    125,845.80x = 188,574.30 × 109,127.40
  4. Step 4: Simplify right side
    125,845.80x = 20,578,623,065.82
  5. Step 5: Solve for x
    x = 20,578,623,065.82/125,845.80
  6. Step 6: Final answer
    x = 163,522.53

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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.