Home / 103,633.57-155,452.98-77,504.17

Finding the Fourth Proportional to 103,633.57, 155,452.98 and 77,504.17

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Solution

The fourth proportional to 103,633.57, 155,452.98 and 77,504.17 is: 116,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633.57 : 155,452.98 = 77,504.17 : x
  2. Step 2: Convert to fraction form
    103,633.57/155,452.98 = 77,504.17/x
  3. Step 3: Cross multiply
    103,633.57x = 155,452.98 × 77,504.17
  4. Step 4: Simplify right side
    103,633.57x = 12,048,254,188.93
  5. Step 5: Solve for x
    x = 12,048,254,188.93/103,633.57
  6. Step 6: Final answer
    x = 116,258.22

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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.