Home / 140,748.88-194,238.12-77,090.16

Finding the Fourth Proportional to 140,748.88, 194,238.12 and 77,090.16

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Solution

The fourth proportional to 140,748.88, 194,238.12 and 77,090.16 is: 106,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,748.88 : 194,238.12 = 77,090.16 : x
  2. Step 2: Convert to fraction form
    140,748.88/194,238.12 = 77,090.16/x
  3. Step 3: Cross multiply
    140,748.88x = 194,238.12 × 77,090.16
  4. Step 4: Simplify right side
    140,748.88x = 14,973,847,748.90
  5. Step 5: Solve for x
    x = 14,973,847,748.90/140,748.88
  6. Step 6: Final answer
    x = 106,386.98

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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.