Home / 109,181.40-150,670.02-61,434.78

Finding the Fourth Proportional to 109,181.40, 150,670.02 and 61,434.78

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Solution

The fourth proportional to 109,181.40, 150,670.02 and 61,434.78 is: 84,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,181.40 : 150,670.02 = 61,434.78 : x
  2. Step 2: Convert to fraction form
    109,181.40/150,670.02 = 61,434.78/x
  3. Step 3: Cross multiply
    109,181.40x = 150,670.02 × 61,434.78
  4. Step 4: Simplify right side
    109,181.40x = 9,256,379,531.30
  5. Step 5: Solve for x
    x = 9,256,379,531.30/109,181.40
  6. Step 6: Final answer
    x = 84,779.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.