Home / 136,484.79-188,349.44-79,135.35

Finding the Fourth Proportional to 136,484.79, 188,349.44 and 79,135.35

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Solution

The fourth proportional to 136,484.79, 188,349.44 and 79,135.35 is: 109,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,484.79 : 188,349.44 = 79,135.35 : x
  2. Step 2: Convert to fraction form
    136,484.79/188,349.44 = 79,135.35/x
  3. Step 3: Cross multiply
    136,484.79x = 188,349.44 × 79,135.35
  4. Step 4: Simplify right side
    136,484.79x = 14,905,098,461.03
  5. Step 5: Solve for x
    x = 14,905,098,461.03/136,484.79
  6. Step 6: Final answer
    x = 109,207.03

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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.