Home / 147,230.03-203,172.99-81,818.63

Finding the Fourth Proportional to 147,230.03, 203,172.99 and 81,818.63

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Solution

The fourth proportional to 147,230.03, 203,172.99 and 81,818.63 is: 112,907.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,230.03 : 203,172.99 = 81,818.63 : x
  2. Step 2: Convert to fraction form
    147,230.03/203,172.99 = 81,818.63/x
  3. Step 3: Cross multiply
    147,230.03x = 203,172.99 × 81,818.63
  4. Step 4: Simplify right side
    147,230.03x = 16,623,334,678.94
  5. Step 5: Solve for x
    x = 16,623,334,678.94/147,230.03
  6. Step 6: Final answer
    x = 112,907.23

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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.