Home / 103,623.21-155,331-43,666.16

Finding the Fourth Proportional to 103,623.21, 155,331 and 43,666.16

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Solution

The fourth proportional to 103,623.21, 155,331 and 43,666.16 is: 65,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.21 : 155,331 = 43,666.16 : x
  2. Step 2: Convert to fraction form
    103,623.21/155,331 = 43,666.16/x
  3. Step 3: Cross multiply
    103,623.21x = 155,331 × 43,666.16
  4. Step 4: Simplify right side
    103,623.21x = 6,782,707,522.31
  5. Step 5: Solve for x
    x = 6,782,707,522.31/103,623.21
  6. Step 6: Final answer
    x = 65,455.49

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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.