Home / 125,595.40-188,275.98-42,431.24

Finding the Fourth Proportional to 125,595.40, 188,275.98 and 42,431.24

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Solution

The fourth proportional to 125,595.40, 188,275.98 and 42,431.24 is: 63,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,595.40 : 188,275.98 = 42,431.24 : x
  2. Step 2: Convert to fraction form
    125,595.40/188,275.98 = 42,431.24/x
  3. Step 3: Cross multiply
    125,595.40x = 188,275.98 × 42,431.24
  4. Step 4: Simplify right side
    125,595.40x = 7,988,783,293.62
  5. Step 5: Solve for x
    x = 7,988,783,293.62/125,595.40
  6. Step 6: Final answer
    x = 63,607.29

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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.