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Finding the Fourth Proportional to 147,519, 221,499.36 and 84,410.28

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Solution

The fourth proportional to 147,519, 221,499.36 and 84,410.28 is: 126,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,519 : 221,499.36 = 84,410.28 : x
  2. Step 2: Convert to fraction form
    147,519/221,499.36 = 84,410.28/x
  3. Step 3: Cross multiply
    147,519x = 221,499.36 × 84,410.28
  4. Step 4: Simplify right side
    147,519x = 18,696,822,997.42
  5. Step 5: Solve for x
    x = 18,696,822,997.42/147,519
  6. Step 6: Final answer
    x = 126,741.80

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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.