Home / 134,901.30-186,161.50-74,470.40

Finding the Fourth Proportional to 134,901.30, 186,161.50 and 74,470.40

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Solution

The fourth proportional to 134,901.30, 186,161.50 and 74,470.40 is: 102,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,901.30 : 186,161.50 = 74,470.40 : x
  2. Step 2: Convert to fraction form
    134,901.30/186,161.50 = 74,470.40/x
  3. Step 3: Cross multiply
    134,901.30x = 186,161.50 × 74,470.40
  4. Step 4: Simplify right side
    134,901.30x = 13,863,521,369.60
  5. Step 5: Solve for x
    x = 13,863,521,369.60/134,901.30
  6. Step 6: Final answer
    x = 102,767.89

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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.