Home / 103,606.54-155,555.20-53,041.68

Finding the Fourth Proportional to 103,606.54, 155,555.20 and 53,041.68

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Solution

The fourth proportional to 103,606.54, 155,555.20 and 53,041.68 is: 79,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,606.54 : 155,555.20 = 53,041.68 : x
  2. Step 2: Convert to fraction form
    103,606.54/155,555.20 = 53,041.68/x
  3. Step 3: Cross multiply
    103,606.54x = 155,555.20 × 53,041.68
  4. Step 4: Simplify right side
    103,606.54x = 8,250,909,140.74
  5. Step 5: Solve for x
    x = 8,250,909,140.74/103,606.54
  6. Step 6: Final answer
    x = 79,636.95

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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.