Home / 125,679.18-188,513.85-42,573.18

Finding the Fourth Proportional to 125,679.18, 188,513.85 and 42,573.18

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Solution

The fourth proportional to 125,679.18, 188,513.85 and 42,573.18 is: 63,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,679.18 : 188,513.85 = 42,573.18 : x
  2. Step 2: Convert to fraction form
    125,679.18/188,513.85 = 42,573.18/x
  3. Step 3: Cross multiply
    125,679.18x = 188,513.85 × 42,573.18
  4. Step 4: Simplify right side
    125,679.18x = 8,025,634,068.54
  5. Step 5: Solve for x
    x = 8,025,634,068.54/125,679.18
  6. Step 6: Final answer
    x = 63,858.10

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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.