Home / 103,345.40-155,039.70-33,231.80

Finding the Fourth Proportional to 103,345.40, 155,039.70 and 33,231.80

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Solution

The fourth proportional to 103,345.40, 155,039.70 and 33,231.80 is: 49,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,345.40 : 155,039.70 = 33,231.80 : x
  2. Step 2: Convert to fraction form
    103,345.40/155,039.70 = 33,231.80/x
  3. Step 3: Cross multiply
    103,345.40x = 155,039.70 × 33,231.80
  4. Step 4: Simplify right side
    103,345.40x = 5,152,248,302.46
  5. Step 5: Solve for x
    x = 5,152,248,302.46/103,345.40
  6. Step 6: Final answer
    x = 49,854.65

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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.