Home / 103,433.10-155,113.20-36,875.40

Finding the Fourth Proportional to 103,433.10, 155,113.20 and 36,875.40

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Solution

The fourth proportional to 103,433.10, 155,113.20 and 36,875.40 is: 55,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.10 : 155,113.20 = 36,875.40 : x
  2. Step 2: Convert to fraction form
    103,433.10/155,113.20 = 36,875.40/x
  3. Step 3: Cross multiply
    103,433.10x = 155,113.20 × 36,875.40
  4. Step 4: Simplify right side
    103,433.10x = 5,719,861,295.28
  5. Step 5: Solve for x
    x = 5,719,861,295.28/103,433.10
  6. Step 6: Final answer
    x = 55,300.11

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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.