Home / 140,331.12-193,659.48-76,671.60

Finding the Fourth Proportional to 140,331.12, 193,659.48 and 76,671.60

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Solution

The fourth proportional to 140,331.12, 193,659.48 and 76,671.60 is: 105,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,331.12 : 193,659.48 = 76,671.60 : x
  2. Step 2: Convert to fraction form
    140,331.12/193,659.48 = 76,671.60/x
  3. Step 3: Cross multiply
    140,331.12x = 193,659.48 × 76,671.60
  4. Step 4: Simplify right side
    140,331.12x = 14,848,182,186.77
  5. Step 5: Solve for x
    x = 14,848,182,186.77/140,331.12
  6. Step 6: Final answer
    x = 105,808.19

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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.