Home / 103,639.13-155,458.70-33,518.45

Finding the Fourth Proportional to 103,639.13, 155,458.70 and 33,518.45

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Solution

The fourth proportional to 103,639.13, 155,458.70 and 33,518.45 is: 50,277.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.13 : 155,458.70 = 33,518.45 : x
  2. Step 2: Convert to fraction form
    103,639.13/155,458.70 = 33,518.45/x
  3. Step 3: Cross multiply
    103,639.13x = 155,458.70 × 33,518.45
  4. Step 4: Simplify right side
    103,639.13x = 5,210,734,663.02
  5. Step 5: Solve for x
    x = 5,210,734,663.02/103,639.13
  6. Step 6: Final answer
    x = 50,277.68

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1.5x scale

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.