Home / 141,090.12-194,706.99-77,430.20

Finding the Fourth Proportional to 141,090.12, 194,706.99 and 77,430.20

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Solution

The fourth proportional to 141,090.12, 194,706.99 and 77,430.20 is: 106,855.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,090.12 : 194,706.99 = 77,430.20 : x
  2. Step 2: Convert to fraction form
    141,090.12/194,706.99 = 77,430.20/x
  3. Step 3: Cross multiply
    141,090.12x = 194,706.99 × 77,430.20
  4. Step 4: Simplify right side
    141,090.12x = 15,076,200,203.56
  5. Step 5: Solve for x
    x = 15,076,200,203.56/141,090.12
  6. Step 6: Final answer
    x = 106,855.11

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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.