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Finding the Fourth Proportional to 125,101.41, 172,656.72 and 74,110.20

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Solution

The fourth proportional to 125,101.41, 172,656.72 and 74,110.20 is: 102,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,101.41 : 172,656.72 = 74,110.20 : x
  2. Step 2: Convert to fraction form
    125,101.41/172,656.72 = 74,110.20/x
  3. Step 3: Cross multiply
    125,101.41x = 172,656.72 × 74,110.20
  4. Step 4: Simplify right side
    125,101.41x = 12,795,624,050.54
  5. Step 5: Solve for x
    x = 12,795,624,050.54/125,101.41
  6. Step 6: Final answer
    x = 102,282.01

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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.