Home / 103,431.08-155,170.92-33,307.76

Finding the Fourth Proportional to 103,431.08, 155,170.92 and 33,307.76

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Solution

The fourth proportional to 103,431.08, 155,170.92 and 33,307.76 is: 49,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,431.08 : 155,170.92 = 33,307.76 : x
  2. Step 2: Convert to fraction form
    103,431.08/155,170.92 = 33,307.76/x
  3. Step 3: Cross multiply
    103,431.08x = 155,170.92 × 33,307.76
  4. Step 4: Simplify right side
    103,431.08x = 5,168,395,762.34
  5. Step 5: Solve for x
    x = 5,168,395,762.34/103,431.08
  6. Step 6: Final answer
    x = 49,969.47

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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.