Home / 147,254.45-203,206.59-86,828.85

Finding the Fourth Proportional to 147,254.45, 203,206.59 and 86,828.85

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Solution

The fourth proportional to 147,254.45, 203,206.59 and 86,828.85 is: 119,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,254.45 : 203,206.59 = 86,828.85 : x
  2. Step 2: Convert to fraction form
    147,254.45/203,206.59 = 86,828.85/x
  3. Step 3: Cross multiply
    147,254.45x = 203,206.59 × 86,828.85
  4. Step 4: Simplify right side
    147,254.45x = 17,644,194,522.12
  5. Step 5: Solve for x
    x = 17,644,194,522.12/147,254.45
  6. Step 6: Final answer
    x = 119,821.13

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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.