Home / 103,686.62-155,280.76-59,178.43

Finding the Fourth Proportional to 103,686.62, 155,280.76 and 59,178.43

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Solution

The fourth proportional to 103,686.62, 155,280.76 and 59,178.43 is: 88,625.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.62 : 155,280.76 = 59,178.43 : x
  2. Step 2: Convert to fraction form
    103,686.62/155,280.76 = 59,178.43/x
  3. Step 3: Cross multiply
    103,686.62x = 155,280.76 × 59,178.43
  4. Step 4: Simplify right side
    103,686.62x = 9,189,271,586.01
  5. Step 5: Solve for x
    x = 9,189,271,586.01/103,686.62
  6. Step 6: Final answer
    x = 88,625.43

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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.