Home / 147,918.24-203,697.18-128,529

Finding the Fourth Proportional to 147,918.24, 203,697.18 and 128,529

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Solution

The fourth proportional to 147,918.24, 203,697.18 and 128,529 is: 176,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,918.24 : 203,697.18 = 128,529 : x
  2. Step 2: Convert to fraction form
    147,918.24/203,697.18 = 128,529/x
  3. Step 3: Cross multiply
    147,918.24x = 203,697.18 × 128,529
  4. Step 4: Simplify right side
    147,918.24x = 26,180,994,848.22
  5. Step 5: Solve for x
    x = 26,180,994,848.22/147,918.24
  6. Step 6: Final answer
    x = 176,996.39

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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.