Home / 97,800.34-146,749.71-72,890.41

Finding the Fourth Proportional to 97,800.34, 146,749.71 and 72,890.41

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Solution

The fourth proportional to 97,800.34, 146,749.71 and 72,890.41 is: 109,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,800.34 : 146,749.71 = 72,890.41 : x
  2. Step 2: Convert to fraction form
    97,800.34/146,749.71 = 72,890.41/x
  3. Step 3: Cross multiply
    97,800.34x = 146,749.71 × 72,890.41
  4. Step 4: Simplify right side
    97,800.34x = 10,696,646,529.28
  5. Step 5: Solve for x
    x = 10,696,646,529.28/97,800.34
  6. Step 6: Final answer
    x = 109,372.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.