Home / 125,111.16-187,672.35-40,876.47

Finding the Fourth Proportional to 125,111.16, 187,672.35 and 40,876.47

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Solution

The fourth proportional to 125,111.16, 187,672.35 and 40,876.47 is: 61,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,111.16 : 187,672.35 = 40,876.47 : x
  2. Step 2: Convert to fraction form
    125,111.16/187,672.35 = 40,876.47/x
  3. Step 3: Cross multiply
    125,111.16x = 187,672.35 × 40,876.47
  4. Step 4: Simplify right side
    125,111.16x = 7,671,383,184.60
  5. Step 5: Solve for x
    x = 7,671,383,184.60/125,111.16
  6. Step 6: Final answer
    x = 61,316.54

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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.