Home / 103,429.80-155,122.92-47,253.96

Finding the Fourth Proportional to 103,429.80, 155,122.92 and 47,253.96

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Solution

The fourth proportional to 103,429.80, 155,122.92 and 47,253.96 is: 70,870.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,429.80 : 155,122.92 = 47,253.96 : x
  2. Step 2: Convert to fraction form
    103,429.80/155,122.92 = 47,253.96/x
  3. Step 3: Cross multiply
    103,429.80x = 155,122.92 × 47,253.96
  4. Step 4: Simplify right side
    103,429.80x = 7,330,172,256.76
  5. Step 5: Solve for x
    x = 7,330,172,256.76/103,429.80
  6. Step 6: Final answer
    x = 70,870.99

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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.