Home / 99,812.46-137,743.28-54,492.36

Finding the Fourth Proportional to 99,812.46, 137,743.28 and 54,492.36

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Solution

The fourth proportional to 99,812.46, 137,743.28 and 54,492.36 is: 75,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.46 : 137,743.28 = 54,492.36 : x
  2. Step 2: Convert to fraction form
    99,812.46/137,743.28 = 54,492.36/x
  3. Step 3: Cross multiply
    99,812.46x = 137,743.28 × 54,492.36
  4. Step 4: Simplify right side
    99,812.46x = 7,505,956,401.34
  5. Step 5: Solve for x
    x = 7,505,956,401.34/99,812.46
  6. Step 6: Final answer
    x = 75,200.60

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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.