Home / 142,318.70-213,420.45-48,776.30

Finding the Fourth Proportional to 142,318.70, 213,420.45 and 48,776.30

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Solution

The fourth proportional to 142,318.70, 213,420.45 and 48,776.30 is: 73,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,318.70 : 213,420.45 = 48,776.30 : x
  2. Step 2: Convert to fraction form
    142,318.70/213,420.45 = 48,776.30/x
  3. Step 3: Cross multiply
    142,318.70x = 213,420.45 × 48,776.30
  4. Step 4: Simplify right side
    142,318.70x = 10,409,859,895.34
  5. Step 5: Solve for x
    x = 10,409,859,895.34/142,318.70
  6. Step 6: Final answer
    x = 73,144.71

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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.