Home / 125,396.83-188,123.96-54,331.29

Finding the Fourth Proportional to 125,396.83, 188,123.96 and 54,331.29

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Solution

The fourth proportional to 125,396.83, 188,123.96 and 54,331.29 is: 81,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,396.83 : 188,123.96 = 54,331.29 : x
  2. Step 2: Convert to fraction form
    125,396.83/188,123.96 = 54,331.29/x
  3. Step 3: Cross multiply
    125,396.83x = 188,123.96 × 54,331.29
  4. Step 4: Simplify right side
    125,396.83x = 10,221,017,426.71
  5. Step 5: Solve for x
    x = 10,221,017,426.71/125,396.83
  6. Step 6: Final answer
    x = 81,509.38

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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.