Home / 134,614.09-185,756.65-78,029.11

Finding the Fourth Proportional to 134,614.09, 185,756.65 and 78,029.11

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Solution

The fourth proportional to 134,614.09, 185,756.65 and 78,029.11 is: 107,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,614.09 : 185,756.65 = 78,029.11 : x
  2. Step 2: Convert to fraction form
    134,614.09/185,756.65 = 78,029.11/x
  3. Step 3: Cross multiply
    134,614.09x = 185,756.65 × 78,029.11
  4. Step 4: Simplify right side
    134,614.09x = 14,494,426,076.08
  5. Step 5: Solve for x
    x = 14,494,426,076.08/134,614.09
  6. Step 6: Final answer
    x = 107,673.91

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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.