Home / 140,648.10-194,094.43-76,987.26

Finding the Fourth Proportional to 140,648.10, 194,094.43 and 76,987.26

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Solution

The fourth proportional to 140,648.10, 194,094.43 and 76,987.26 is: 106,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,648.10 : 194,094.43 = 76,987.26 : x
  2. Step 2: Convert to fraction form
    140,648.10/194,094.43 = 76,987.26/x
  3. Step 3: Cross multiply
    140,648.10x = 194,094.43 × 76,987.26
  4. Step 4: Simplify right side
    140,648.10x = 14,942,798,154.49
  5. Step 5: Solve for x
    x = 14,942,798,154.49/140,648.10
  6. Step 6: Final answer
    x = 106,242.45

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1.5x scale

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.