Home / 103,436.09-155,154.14-33,315.40

Finding the Fourth Proportional to 103,436.09, 155,154.14 and 33,315.40

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Solution

The fourth proportional to 103,436.09, 155,154.14 and 33,315.40 is: 49,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,436.09 : 155,154.14 = 33,315.40 : x
  2. Step 2: Convert to fraction form
    103,436.09/155,154.14 = 33,315.40/x
  3. Step 3: Cross multiply
    103,436.09x = 155,154.14 × 33,315.40
  4. Step 4: Simplify right side
    103,436.09x = 5,169,022,235.76
  5. Step 5: Solve for x
    x = 5,169,022,235.76/103,436.09
  6. Step 6: Final answer
    x = 49,973.10

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Similar ratio
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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.