Home / 103,686.48-155,524.23-51,078.20

Finding the Fourth Proportional to 103,686.48, 155,524.23 and 51,078.20

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Solution

The fourth proportional to 103,686.48, 155,524.23 and 51,078.20 is: 76,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.48 : 155,524.23 = 51,078.20 : x
  2. Step 2: Convert to fraction form
    103,686.48/155,524.23 = 51,078.20/x
  3. Step 3: Cross multiply
    103,686.48x = 155,524.23 × 51,078.20
  4. Step 4: Simplify right side
    103,686.48x = 7,943,897,724.79
  5. Step 5: Solve for x
    x = 7,943,897,724.79/103,686.48
  6. Step 6: Final answer
    x = 76,614.60

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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.