Home / 129,670.02-194,505.03-40,985.81

Finding the Fourth Proportional to 129,670.02, 194,505.03 and 40,985.81

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Solution

The fourth proportional to 129,670.02, 194,505.03 and 40,985.81 is: 61,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,670.02 : 194,505.03 = 40,985.81 : x
  2. Step 2: Convert to fraction form
    129,670.02/194,505.03 = 40,985.81/x
  3. Step 3: Cross multiply
    129,670.02x = 194,505.03 × 40,985.81
  4. Step 4: Simplify right side
    129,670.02x = 7,971,945,231.10
  5. Step 5: Solve for x
    x = 7,971,945,231.10/129,670.02
  6. Step 6: Final answer
    x = 61,478.71

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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.