Home / 129,526.09-194,335.54-45,309.38

Finding the Fourth Proportional to 129,526.09, 194,335.54 and 45,309.38

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Solution

The fourth proportional to 129,526.09, 194,335.54 and 45,309.38 is: 67,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,526.09 : 194,335.54 = 45,309.38 : x
  2. Step 2: Convert to fraction form
    129,526.09/194,335.54 = 45,309.38/x
  3. Step 3: Cross multiply
    129,526.09x = 194,335.54 × 45,309.38
  4. Step 4: Simplify right side
    129,526.09x = 8,805,221,744.41
  5. Step 5: Solve for x
    x = 8,805,221,744.41/129,526.09
  6. Step 6: Final answer
    x = 67,980.30

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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.