Home / 103,833.13-155,762.60-40,645.03

Finding the Fourth Proportional to 103,833.13, 155,762.60 and 40,645.03

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Solution

The fourth proportional to 103,833.13, 155,762.60 and 40,645.03 is: 60,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,833.13 : 155,762.60 = 40,645.03 : x
  2. Step 2: Convert to fraction form
    103,833.13/155,762.60 = 40,645.03/x
  3. Step 3: Cross multiply
    103,833.13x = 155,762.60 × 40,645.03
  4. Step 4: Simplify right side
    103,833.13x = 6,330,975,549.88
  5. Step 5: Solve for x
    x = 6,330,975,549.88/103,833.13
  6. Step 6: Final answer
    x = 60,972.60

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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.