Home / 129,421.02-194,131.68-40,682.28

Finding the Fourth Proportional to 129,421.02, 194,131.68 and 40,682.28

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Solution

The fourth proportional to 129,421.02, 194,131.68 and 40,682.28 is: 61,023.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,421.02 : 194,131.68 = 40,682.28 : x
  2. Step 2: Convert to fraction form
    129,421.02/194,131.68 = 40,682.28/x
  3. Step 3: Cross multiply
    129,421.02x = 194,131.68 × 40,682.28
  4. Step 4: Simplify right side
    129,421.02x = 7,897,719,362.63
  5. Step 5: Solve for x
    x = 7,897,719,362.63/129,421.02
  6. Step 6: Final answer
    x = 61,023.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.