Home / 129,418.02-194,127.17-40,679.28

Finding the Fourth Proportional to 129,418.02, 194,127.17 and 40,679.28

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Solution

The fourth proportional to 129,418.02, 194,127.17 and 40,679.28 is: 61,018.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,418.02 : 194,127.17 = 40,679.28 : x
  2. Step 2: Convert to fraction form
    129,418.02/194,127.17 = 40,679.28/x
  3. Step 3: Cross multiply
    129,418.02x = 194,127.17 × 40,679.28
  4. Step 4: Simplify right side
    129,418.02x = 7,896,953,300.64
  5. Step 5: Solve for x
    x = 7,896,953,300.64/129,418.02
  6. Step 6: Final answer
    x = 61,018.96

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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.