Home / 134,675.09-185,840.70-78,090.11

Finding the Fourth Proportional to 134,675.09, 185,840.70 and 78,090.11

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Solution

The fourth proportional to 134,675.09, 185,840.70 and 78,090.11 is: 107,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,675.09 : 185,840.70 = 78,090.11 : x
  2. Step 2: Convert to fraction form
    134,675.09/185,840.70 = 78,090.11/x
  3. Step 3: Cross multiply
    134,675.09x = 185,840.70 × 78,090.11
  4. Step 4: Simplify right side
    134,675.09x = 14,512,320,705.48
  5. Step 5: Solve for x
    x = 14,512,320,705.48/134,675.09
  6. Step 6: Final answer
    x = 107,758.02

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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.