Home / 125,266.48-187,919.16-42,154

Finding the Fourth Proportional to 125,266.48, 187,919.16 and 42,154

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Solution

The fourth proportional to 125,266.48, 187,919.16 and 42,154 is: 63,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,266.48 : 187,919.16 = 42,154 : x
  2. Step 2: Convert to fraction form
    125,266.48/187,919.16 = 42,154/x
  3. Step 3: Cross multiply
    125,266.48x = 187,919.16 × 42,154
  4. Step 4: Simplify right side
    125,266.48x = 7,921,544,270.64
  5. Step 5: Solve for x
    x = 7,921,544,270.64/125,266.48
  6. Step 6: Final answer
    x = 63,237.54

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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.