Home / 134,857.72-186,102.36-74,428.96

Finding the Fourth Proportional to 134,857.72, 186,102.36 and 74,428.96

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Solution

The fourth proportional to 134,857.72, 186,102.36 and 74,428.96 is: 102,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857.72 : 186,102.36 = 74,428.96 : x
  2. Step 2: Convert to fraction form
    134,857.72/186,102.36 = 74,428.96/x
  3. Step 3: Cross multiply
    134,857.72x = 186,102.36 × 74,428.96
  4. Step 4: Simplify right side
    134,857.72x = 13,851,405,108.35
  5. Step 5: Solve for x
    x = 13,851,405,108.35/134,857.72
  6. Step 6: Final answer
    x = 102,711.25

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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.