Home / 103,686.21-155,549.66-47,527.70

Finding the Fourth Proportional to 103,686.21, 155,549.66 and 47,527.70

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Solution

The fourth proportional to 103,686.21, 155,549.66 and 47,527.70 is: 71,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.21 : 155,549.66 = 47,527.70 : x
  2. Step 2: Convert to fraction form
    103,686.21/155,549.66 = 47,527.70/x
  3. Step 3: Cross multiply
    103,686.21x = 155,549.66 × 47,527.70
  4. Step 4: Simplify right side
    103,686.21x = 7,392,916,560.20
  5. Step 5: Solve for x
    x = 7,392,916,560.20/103,686.21
  6. Step 6: Final answer
    x = 71,300.87

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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.