Home / 103,390.47-155,100.30-36,816.36

Finding the Fourth Proportional to 103,390.47, 155,100.30 and 36,816.36

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Solution

The fourth proportional to 103,390.47, 155,100.30 and 36,816.36 is: 55,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390.47 : 155,100.30 = 36,816.36 : x
  2. Step 2: Convert to fraction form
    103,390.47/155,100.30 = 36,816.36/x
  3. Step 3: Cross multiply
    103,390.47x = 155,100.30 × 36,816.36
  4. Step 4: Simplify right side
    103,390.47x = 5,710,228,480.91
  5. Step 5: Solve for x
    x = 5,710,228,480.91/103,390.47
  6. Step 6: Final answer
    x = 55,229.74

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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.