Home / 103,686.20-155,529.30-41,401.40

Finding the Fourth Proportional to 103,686.20, 155,529.30 and 41,401.40

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Solution

The fourth proportional to 103,686.20, 155,529.30 and 41,401.40 is: 62,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.20 : 155,529.30 = 41,401.40 : x
  2. Step 2: Convert to fraction form
    103,686.20/155,529.30 = 41,401.40/x
  3. Step 3: Cross multiply
    103,686.20x = 155,529.30 × 41,401.40
  4. Step 4: Simplify right side
    103,686.20x = 6,439,130,761.02
  5. Step 5: Solve for x
    x = 6,439,130,761.02/103,686.20
  6. Step 6: Final answer
    x = 62,102.10

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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.