Home / 103,433.55-155,150.34-33,312.87

Finding the Fourth Proportional to 103,433.55, 155,150.34 and 33,312.87

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Solution

The fourth proportional to 103,433.55, 155,150.34 and 33,312.87 is: 49,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.55 : 155,150.34 = 33,312.87 : x
  2. Step 2: Convert to fraction form
    103,433.55/155,150.34 = 33,312.87/x
  3. Step 3: Cross multiply
    103,433.55x = 155,150.34 × 33,312.87
  4. Step 4: Simplify right side
    103,433.55x = 5,168,502,701.75
  5. Step 5: Solve for x
    x = 5,168,502,701.75/103,433.55
  6. Step 6: Final answer
    x = 49,969.30

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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.