Home / 117,888.72-162,612.88-71,927.36

Finding the Fourth Proportional to 117,888.72, 162,612.88 and 71,927.36

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Solution

The fourth proportional to 117,888.72, 162,612.88 and 71,927.36 is: 99,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,888.72 : 162,612.88 = 71,927.36 : x
  2. Step 2: Convert to fraction form
    117,888.72/162,612.88 = 71,927.36/x
  3. Step 3: Cross multiply
    117,888.72x = 162,612.88 × 71,927.36
  4. Step 4: Simplify right side
    117,888.72x = 11,696,315,160.40
  5. Step 5: Solve for x
    x = 11,696,315,160.40/117,888.72
  6. Step 6: Final answer
    x = 99,214.88

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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.