Home / 103,681.03-155,521.55-51,193.03

Finding the Fourth Proportional to 103,681.03, 155,521.55 and 51,193.03

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Solution

The fourth proportional to 103,681.03, 155,521.55 and 51,193.03 is: 76,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.03 : 155,521.55 = 51,193.03 : x
  2. Step 2: Convert to fraction form
    103,681.03/155,521.55 = 51,193.03/x
  3. Step 3: Cross multiply
    103,681.03x = 155,521.55 × 51,193.03
  4. Step 4: Simplify right side
    103,681.03x = 7,961,619,374.80
  5. Step 5: Solve for x
    x = 7,961,619,374.80/103,681.03
  6. Step 6: Final answer
    x = 76,789.55

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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.