Home / 85,060.02-117,186.30-61,145.32

Finding the Fourth Proportional to 85,060.02, 117,186.30 and 61,145.32

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Solution

The fourth proportional to 85,060.02, 117,186.30 and 61,145.32 is: 84,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,060.02 : 117,186.30 = 61,145.32 : x
  2. Step 2: Convert to fraction form
    85,060.02/117,186.30 = 61,145.32/x
  3. Step 3: Cross multiply
    85,060.02x = 117,186.30 × 61,145.32
  4. Step 4: Simplify right side
    85,060.02x = 7,165,393,813.12
  5. Step 5: Solve for x
    x = 7,165,393,813.12/85,060.02
  6. Step 6: Final answer
    x = 84,239.27

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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.