Home / 134,838.16-186,080.60-74,412.72

Finding the Fourth Proportional to 134,838.16, 186,080.60 and 74,412.72

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Solution

The fourth proportional to 134,838.16, 186,080.60 and 74,412.72 is: 102,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,838.16 : 186,080.60 = 74,412.72 : x
  2. Step 2: Convert to fraction form
    134,838.16/186,080.60 = 74,412.72/x
  3. Step 3: Cross multiply
    134,838.16x = 186,080.60 × 74,412.72
  4. Step 4: Simplify right side
    134,838.16x = 13,846,763,771.26
  5. Step 5: Solve for x
    x = 13,846,763,771.26/134,838.16
  6. Step 6: Final answer
    x = 102,691.73

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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.