Home / 103,439.09-155,170.79-36,888.68

Finding the Fourth Proportional to 103,439.09, 155,170.79 and 36,888.68

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Solution

The fourth proportional to 103,439.09, 155,170.79 and 36,888.68 is: 55,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439.09 : 155,170.79 = 36,888.68 : x
  2. Step 2: Convert to fraction form
    103,439.09/155,170.79 = 36,888.68/x
  3. Step 3: Cross multiply
    103,439.09x = 155,170.79 × 36,888.68
  4. Step 4: Simplify right side
    103,439.09x = 5,724,045,959.47
  5. Step 5: Solve for x
    x = 5,724,045,959.47/103,439.09
  6. Step 6: Final answer
    x = 55,337.36

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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.