Home / 134,119.80-185,031.54-83,115.72

Finding the Fourth Proportional to 134,119.80, 185,031.54 and 83,115.72

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Solution

The fourth proportional to 134,119.80, 185,031.54 and 83,115.72 is: 114,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,119.80 : 185,031.54 = 83,115.72 : x
  2. Step 2: Convert to fraction form
    134,119.80/185,031.54 = 83,115.72/x
  3. Step 3: Cross multiply
    134,119.80x = 185,031.54 × 83,115.72
  4. Step 4: Simplify right side
    134,119.80x = 15,379,029,669.81
  5. Step 5: Solve for x
    x = 15,379,029,669.81/134,119.80
  6. Step 6: Final answer
    x = 114,666.36

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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.