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Finding the Fourth Proportional to 125,681.80, 173,522.10 and 83,297.80

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Solution

The fourth proportional to 125,681.80, 173,522.10 and 83,297.80 is: 115,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,681.80 : 173,522.10 = 83,297.80 : x
  2. Step 2: Convert to fraction form
    125,681.80/173,522.10 = 83,297.80/x
  3. Step 3: Cross multiply
    125,681.80x = 173,522.10 × 83,297.80
  4. Step 4: Simplify right side
    125,681.80x = 14,454,009,181.38
  5. Step 5: Solve for x
    x = 14,454,009,181.38/125,681.80
  6. Step 6: Final answer
    x = 115,004.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.