Home / 103,685.48-155,522.73-51,077.20

Finding the Fourth Proportional to 103,685.48, 155,522.73 and 51,077.20

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Solution

The fourth proportional to 103,685.48, 155,522.73 and 51,077.20 is: 76,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,685.48 : 155,522.73 = 51,077.20 : x
  2. Step 2: Convert to fraction form
    103,685.48/155,522.73 = 51,077.20/x
  3. Step 3: Cross multiply
    103,685.48x = 155,522.73 × 51,077.20
  4. Step 4: Simplify right side
    103,685.48x = 7,943,665,584.76
  5. Step 5: Solve for x
    x = 7,943,665,584.76/103,685.48
  6. Step 6: Final answer
    x = 76,613.10

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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.