Home / 140,392.75-193,739.12-76,731.01

Finding the Fourth Proportional to 140,392.75, 193,739.12 and 76,731.01

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Solution

The fourth proportional to 140,392.75, 193,739.12 and 76,731.01 is: 105,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,392.75 : 193,739.12 = 76,731.01 : x
  2. Step 2: Convert to fraction form
    140,392.75/193,739.12 = 76,731.01/x
  3. Step 3: Cross multiply
    140,392.75x = 193,739.12 × 76,731.01
  4. Step 4: Simplify right side
    140,392.75x = 14,865,798,354.11
  5. Step 5: Solve for x
    x = 14,865,798,354.11/140,392.75
  6. Step 6: Final answer
    x = 105,887.22

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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.